Home / 15,622.78-23,396.61-8,939.02

Finding the Fourth Proportional to 15,622.78, 23,396.61 and 8,939.02

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Solution

The fourth proportional to 15,622.78, 23,396.61 and 8,939.02 is: 13,387.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,622.78 : 23,396.61 = 8,939.02 : x
  2. Step 2: Convert to fraction form
    15,622.78/23,396.61 = 8,939.02/x
  3. Step 3: Cross multiply
    15,622.78x = 23,396.61 × 8,939.02
  4. Step 4: Simplify right side
    15,622.78x = 209,142,764.72
  5. Step 5: Solve for x
    x = 209,142,764.72/15,622.78
  6. Step 6: Final answer
    x = 13,387.04

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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.