Home / 15,301.20-22,946.40-5,440.80

Finding the Fourth Proportional to 15,301.20, 22,946.40 and 5,440.80

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Solution

The fourth proportional to 15,301.20, 22,946.40 and 5,440.80 is: 8,159.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301.20 : 22,946.40 = 5,440.80 : x
  2. Step 2: Convert to fraction form
    15,301.20/22,946.40 = 5,440.80/x
  3. Step 3: Cross multiply
    15,301.20x = 22,946.40 × 5,440.80
  4. Step 4: Simplify right side
    15,301.20x = 124,846,773.12
  5. Step 5: Solve for x
    x = 124,846,773.12/15,301.20
  6. Step 6: Final answer
    x = 8,159.28

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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.