Home / 15,472.16-21,349.20-10,169.12

Finding the Fourth Proportional to 15,472.16, 21,349.20 and 10,169.12

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Solution

The fourth proportional to 15,472.16, 21,349.20 and 10,169.12 is: 14,031.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,472.16 : 21,349.20 = 10,169.12 : x
  2. Step 2: Convert to fraction form
    15,472.16/21,349.20 = 10,169.12/x
  3. Step 3: Cross multiply
    15,472.16x = 21,349.20 × 10,169.12
  4. Step 4: Simplify right side
    15,472.16x = 217,102,576.70
  5. Step 5: Solve for x
    x = 217,102,576.70/15,472.16
  6. Step 6: Final answer
    x = 14,031.82

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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.