Home / 18,744.32-28,115.04-7,648.04

Finding the Fourth Proportional to 18,744.32, 28,115.04 and 7,648.04

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Solution

The fourth proportional to 18,744.32, 28,115.04 and 7,648.04 is: 11,471.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,744.32 : 28,115.04 = 7,648.04 : x
  2. Step 2: Convert to fraction form
    18,744.32/28,115.04 = 7,648.04/x
  3. Step 3: Cross multiply
    18,744.32x = 28,115.04 × 7,648.04
  4. Step 4: Simplify right side
    18,744.32x = 215,024,950.52
  5. Step 5: Solve for x
    x = 215,024,950.52/18,744.32
  6. Step 6: Final answer
    x = 11,471.47

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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.