Home / 13,145.10-19,717.65-8,997.90

Finding the Fourth Proportional to 13,145.10, 19,717.65 and 8,997.90

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Solution

The fourth proportional to 13,145.10, 19,717.65 and 8,997.90 is: 13,496.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145.10 : 19,717.65 = 8,997.90 : x
  2. Step 2: Convert to fraction form
    13,145.10/19,717.65 = 8,997.90/x
  3. Step 3: Cross multiply
    13,145.10x = 19,717.65 × 8,997.90
  4. Step 4: Simplify right side
    13,145.10x = 177,417,442.94
  5. Step 5: Solve for x
    x = 177,417,442.94/13,145.10
  6. Step 6: Final answer
    x = 13,496.85

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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.