Home / 16,787.12-25,151.51-11,778.89

Finding the Fourth Proportional to 16,787.12, 25,151.51 and 11,778.89

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Solution

The fourth proportional to 16,787.12, 25,151.51 and 11,778.89 is: 17,647.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,787.12 : 25,151.51 = 11,778.89 : x
  2. Step 2: Convert to fraction form
    16,787.12/25,151.51 = 11,778.89/x
  3. Step 3: Cross multiply
    16,787.12x = 25,151.51 × 11,778.89
  4. Step 4: Simplify right side
    16,787.12x = 296,256,773.31
  5. Step 5: Solve for x
    x = 296,256,773.31/16,787.12
  6. Step 6: Final answer
    x = 17,647.87

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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.