Home / 15,108.78-22,651.20-5,746.92

Finding the Fourth Proportional to 15,108.78, 22,651.20 and 5,746.92

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Solution

The fourth proportional to 15,108.78, 22,651.20 and 5,746.92 is: 8,615.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108.78 : 22,651.20 = 5,746.92 : x
  2. Step 2: Convert to fraction form
    15,108.78/22,651.20 = 5,746.92/x
  3. Step 3: Cross multiply
    15,108.78x = 22,651.20 × 5,746.92
  4. Step 4: Simplify right side
    15,108.78x = 130,174,634.30
  5. Step 5: Solve for x
    x = 130,174,634.30/15,108.78
  6. Step 6: Final answer
    x = 8,615.83

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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.