Home / 10,306.38-15,450.39-5,038.55

Finding the Fourth Proportional to 10,306.38, 15,450.39 and 5,038.55

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Solution

The fourth proportional to 10,306.38, 15,450.39 and 5,038.55 is: 7,553.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,306.38 : 15,450.39 = 5,038.55 : x
  2. Step 2: Convert to fraction form
    10,306.38/15,450.39 = 5,038.55/x
  3. Step 3: Cross multiply
    10,306.38x = 15,450.39 × 5,038.55
  4. Step 4: Simplify right side
    10,306.38x = 77,847,485.28
  5. Step 5: Solve for x
    x = 77,847,485.28/10,306.38
  6. Step 6: Final answer
    x = 7,553.33

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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.