Home / 10,587.25-15,880.88-5,641.90

Finding the Fourth Proportional to 10,587.25, 15,880.88 and 5,641.90

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Solution

The fourth proportional to 10,587.25, 15,880.88 and 5,641.90 is: 8,462.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,587.25 : 15,880.88 = 5,641.90 : x
  2. Step 2: Convert to fraction form
    10,587.25/15,880.88 = 5,641.90/x
  3. Step 3: Cross multiply
    10,587.25x = 15,880.88 × 5,641.90
  4. Step 4: Simplify right side
    10,587.25x = 89,598,268.96
  5. Step 5: Solve for x
    x = 89,598,268.96/10,587.25
  6. Step 6: Final answer
    x = 8,462.85

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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.