Home / 9,189.44-12,679.47-5,411.23

Finding the Fourth Proportional to 9,189.44, 12,679.47 and 5,411.23

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Solution

The fourth proportional to 9,189.44, 12,679.47 and 5,411.23 is: 7,466.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189.44 : 12,679.47 = 5,411.23 : x
  2. Step 2: Convert to fraction form
    9,189.44/12,679.47 = 5,411.23/x
  3. Step 3: Cross multiply
    9,189.44x = 12,679.47 × 5,411.23
  4. Step 4: Simplify right side
    9,189.44x = 68,611,532.41
  5. Step 5: Solve for x
    x = 68,611,532.41/9,189.44
  6. Step 6: Final answer
    x = 7,466.34

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Half scale
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Double scale
Find fourth proportional to 9,190.44, 12,680.85 and 5,412.23
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.