Home / 11,042.40-16,563.60-7,151.20

Finding the Fourth Proportional to 11,042.40, 16,563.60 and 7,151.20

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Solution

The fourth proportional to 11,042.40, 16,563.60 and 7,151.20 is: 10,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,042.40 : 16,563.60 = 7,151.20 : x
  2. Step 2: Convert to fraction form
    11,042.40/16,563.60 = 7,151.20/x
  3. Step 3: Cross multiply
    11,042.40x = 16,563.60 × 7,151.20
  4. Step 4: Simplify right side
    11,042.40x = 118,449,616.32
  5. Step 5: Solve for x
    x = 118,449,616.32/11,042.40
  6. Step 6: Final answer
    x = 10,726.80

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Similar ratio
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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.