Home / 11,299.43-15,575.93-7,932.80

Finding the Fourth Proportional to 11,299.43, 15,575.93 and 7,932.80

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Solution

The fourth proportional to 11,299.43, 15,575.93 and 7,932.80 is: 10,935.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,299.43 : 15,575.93 = 7,932.80 : x
  2. Step 2: Convert to fraction form
    11,299.43/15,575.93 = 7,932.80/x
  3. Step 3: Cross multiply
    11,299.43x = 15,575.93 × 7,932.80
  4. Step 4: Simplify right side
    11,299.43x = 123,560,737.50
  5. Step 5: Solve for x
    x = 123,560,737.50/11,299.43
  6. Step 6: Final answer
    x = 10,935.13

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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.