Home / 8,787.60-13,181.40-5,507.10

Finding the Fourth Proportional to 8,787.60, 13,181.40 and 5,507.10

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Solution

The fourth proportional to 8,787.60, 13,181.40 and 5,507.10 is: 8,260.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.60 : 13,181.40 = 5,507.10 : x
  2. Step 2: Convert to fraction form
    8,787.60/13,181.40 = 5,507.10/x
  3. Step 3: Cross multiply
    8,787.60x = 13,181.40 × 5,507.10
  4. Step 4: Simplify right side
    8,787.60x = 72,591,287.94
  5. Step 5: Solve for x
    x = 72,591,287.94/8,787.60
  6. Step 6: Final answer
    x = 8,260.65

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.