Home / 15,153.62-22,720.18-5,287.52

Finding the Fourth Proportional to 15,153.62, 22,720.18 and 5,287.52

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Solution

The fourth proportional to 15,153.62, 22,720.18 and 5,287.52 is: 7,927.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,153.62 : 22,720.18 = 5,287.52 : x
  2. Step 2: Convert to fraction form
    15,153.62/22,720.18 = 5,287.52/x
  3. Step 3: Cross multiply
    15,153.62x = 22,720.18 × 5,287.52
  4. Step 4: Simplify right side
    15,153.62x = 120,133,406.15
  5. Step 5: Solve for x
    x = 120,133,406.15/15,153.62
  6. Step 6: Final answer
    x = 7,927.70

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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.