Home / 13,200.75-18,225.32-8,493.21

Finding the Fourth Proportional to 13,200.75, 18,225.32 and 8,493.21

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Solution

The fourth proportional to 13,200.75, 18,225.32 and 8,493.21 is: 11,725.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.75 : 18,225.32 = 8,493.21 : x
  2. Step 2: Convert to fraction form
    13,200.75/18,225.32 = 8,493.21/x
  3. Step 3: Cross multiply
    13,200.75x = 18,225.32 × 8,493.21
  4. Step 4: Simplify right side
    13,200.75x = 154,791,427.61
  5. Step 5: Solve for x
    x = 154,791,427.61/13,200.75
  6. Step 6: Final answer
    x = 11,725.96

Related Problems

Find fourth proportional to 6,600.38, 9,112.66 and 4,246.61
Half scale
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Double scale
Find fourth proportional to 13,201.75, 18,226.70 and 8,494.21
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.