Home / 10,620.18-15,935.49-7,520.13

Finding the Fourth Proportional to 10,620.18, 15,935.49 and 7,520.13

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Solution

The fourth proportional to 10,620.18, 15,935.49 and 7,520.13 is: 11,283.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.18 : 15,935.49 = 7,520.13 : x
  2. Step 2: Convert to fraction form
    10,620.18/15,935.49 = 7,520.13/x
  3. Step 3: Cross multiply
    10,620.18x = 15,935.49 × 7,520.13
  4. Step 4: Simplify right side
    10,620.18x = 119,836,956.41
  5. Step 5: Solve for x
    x = 119,836,956.41/10,620.18
  6. Step 6: Final answer
    x = 11,283.89

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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.