Home / 15,151.20-22,737.20-5,290.48

Finding the Fourth Proportional to 15,151.20, 22,737.20 and 5,290.48

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Solution

The fourth proportional to 15,151.20, 22,737.20 and 5,290.48 is: 7,939.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,151.20 : 22,737.20 = 5,290.48 : x
  2. Step 2: Convert to fraction form
    15,151.20/22,737.20 = 5,290.48/x
  3. Step 3: Cross multiply
    15,151.20x = 22,737.20 × 5,290.48
  4. Step 4: Simplify right side
    15,151.20x = 120,290,701.86
  5. Step 5: Solve for x
    x = 120,290,701.86/15,151.20
  6. Step 6: Final answer
    x = 7,939.35

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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.