Home / 15,123.36-22,691.12-7,331.36

Finding the Fourth Proportional to 15,123.36, 22,691.12 and 7,331.36

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Solution

The fourth proportional to 15,123.36, 22,691.12 and 7,331.36 is: 10,999.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,123.36 : 22,691.12 = 7,331.36 : x
  2. Step 2: Convert to fraction form
    15,123.36/22,691.12 = 7,331.36/x
  3. Step 3: Cross multiply
    15,123.36x = 22,691.12 × 7,331.36
  4. Step 4: Simplify right side
    15,123.36x = 166,356,769.52
  5. Step 5: Solve for x
    x = 166,356,769.52/15,123.36
  6. Step 6: Final answer
    x = 10,999.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.