Home / 16,872.60-25,292.70-13,122.30

Finding the Fourth Proportional to 16,872.60, 25,292.70 and 13,122.30

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Solution

The fourth proportional to 16,872.60, 25,292.70 and 13,122.30 is: 19,670.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,872.60 : 25,292.70 = 13,122.30 : x
  2. Step 2: Convert to fraction form
    16,872.60/25,292.70 = 13,122.30/x
  3. Step 3: Cross multiply
    16,872.60x = 25,292.70 × 13,122.30
  4. Step 4: Simplify right side
    16,872.60x = 331,898,397.21
  5. Step 5: Solve for x
    x = 331,898,397.21/16,872.60
  6. Step 6: Final answer
    x = 19,670.85

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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.