Home / 13,385.89-18,472.51-7,336.14

Finding the Fourth Proportional to 13,385.89, 18,472.51 and 7,336.14

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Solution

The fourth proportional to 13,385.89, 18,472.51 and 7,336.14 is: 10,123.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.89 : 18,472.51 = 7,336.14 : x
  2. Step 2: Convert to fraction form
    13,385.89/18,472.51 = 7,336.14/x
  3. Step 3: Cross multiply
    13,385.89x = 18,472.51 × 7,336.14
  4. Step 4: Simplify right side
    13,385.89x = 135,516,818.14
  5. Step 5: Solve for x
    x = 135,516,818.14/13,385.89
  6. Step 6: Final answer
    x = 10,123.85

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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.