Home / 11,731.20-16,172.64-10,331.52

Finding the Fourth Proportional to 11,731.20, 16,172.64 and 10,331.52

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Solution

The fourth proportional to 11,731.20, 16,172.64 and 10,331.52 is: 14,243.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,731.20 : 16,172.64 = 10,331.52 : x
  2. Step 2: Convert to fraction form
    11,731.20/16,172.64 = 10,331.52/x
  3. Step 3: Cross multiply
    11,731.20x = 16,172.64 × 10,331.52
  4. Step 4: Simplify right side
    11,731.20x = 167,087,953.61
  5. Step 5: Solve for x
    x = 167,087,953.61/11,731.20
  6. Step 6: Final answer
    x = 14,243.04

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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.