Home / 15,046.10-20,763.36-8,331.58

Finding the Fourth Proportional to 15,046.10, 20,763.36 and 8,331.58

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Solution

The fourth proportional to 15,046.10, 20,763.36 and 8,331.58 is: 11,497.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,046.10 : 20,763.36 = 8,331.58 : x
  2. Step 2: Convert to fraction form
    15,046.10/20,763.36 = 8,331.58/x
  3. Step 3: Cross multiply
    15,046.10x = 20,763.36 × 8,331.58
  4. Step 4: Simplify right side
    15,046.10x = 172,991,718.31
  5. Step 5: Solve for x
    x = 172,991,718.31/15,046.10
  6. Step 6: Final answer
    x = 11,497.44

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.