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Finding the Fourth Proportional to 9,366.76, 12,920.34 and 7,850.44

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Solution

The fourth proportional to 9,366.76, 12,920.34 and 7,850.44 is: 10,828.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,366.76 : 12,920.34 = 7,850.44 : x
  2. Step 2: Convert to fraction form
    9,366.76/12,920.34 = 7,850.44/x
  3. Step 3: Cross multiply
    9,366.76x = 12,920.34 × 7,850.44
  4. Step 4: Simplify right side
    9,366.76x = 101,430,353.95
  5. Step 5: Solve for x
    x = 101,430,353.95/9,366.76
  6. Step 6: Final answer
    x = 10,828.76

Related Problems

Find fourth proportional to 4,683.38, 6,460.17 and 3,925.22
Half scale
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Double scale
Find fourth proportional to 9,367.76, 12,921.72 and 7,851.44
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.