Home / 15,149.70-22,728.20-4,761.45

Finding the Fourth Proportional to 15,149.70, 22,728.20 and 4,761.45

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Solution

The fourth proportional to 15,149.70, 22,728.20 and 4,761.45 is: 7,143.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,149.70 : 22,728.20 = 4,761.45 : x
  2. Step 2: Convert to fraction form
    15,149.70/22,728.20 = 4,761.45/x
  3. Step 3: Cross multiply
    15,149.70x = 22,728.20 × 4,761.45
  4. Step 4: Simplify right side
    15,149.70x = 108,219,164.08
  5. Step 5: Solve for x
    x = 108,219,164.08/15,149.70
  6. Step 6: Final answer
    x = 7,143.32

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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.