Home / 15,153.78-22,720.20-7,753.22

Finding the Fourth Proportional to 15,153.78, 22,720.20 and 7,753.22

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Solution

The fourth proportional to 15,153.78, 22,720.20 and 7,753.22 is: 11,624.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,153.78 : 22,720.20 = 7,753.22 : x
  2. Step 2: Convert to fraction form
    15,153.78/22,720.20 = 7,753.22/x
  3. Step 3: Cross multiply
    15,153.78x = 22,720.20 × 7,753.22
  4. Step 4: Simplify right side
    15,153.78x = 176,154,651.57
  5. Step 5: Solve for x
    x = 176,154,651.57/15,153.78
  6. Step 6: Final answer
    x = 11,624.47

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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.