Home / 11,939.80-16,462.11-7,952.17

Finding the Fourth Proportional to 11,939.80, 16,462.11 and 7,952.17

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Solution

The fourth proportional to 11,939.80, 16,462.11 and 7,952.17 is: 10,964.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.80 : 16,462.11 = 7,952.17 : x
  2. Step 2: Convert to fraction form
    11,939.80/16,462.11 = 7,952.17/x
  3. Step 3: Cross multiply
    11,939.80x = 16,462.11 × 7,952.17
  4. Step 4: Simplify right side
    11,939.80x = 130,909,497.28
  5. Step 5: Solve for x
    x = 130,909,497.28/11,939.80
  6. Step 6: Final answer
    x = 10,964.13

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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.