Home / 14,757.88-20,358.66-8,787.64

Finding the Fourth Proportional to 14,757.88, 20,358.66 and 8,787.64

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Solution

The fourth proportional to 14,757.88, 20,358.66 and 8,787.64 is: 12,122.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,757.88 : 20,358.66 = 8,787.64 : x
  2. Step 2: Convert to fraction form
    14,757.88/20,358.66 = 8,787.64/x
  3. Step 3: Cross multiply
    14,757.88x = 20,358.66 × 8,787.64
  4. Step 4: Simplify right side
    14,757.88x = 178,904,574.96
  5. Step 5: Solve for x
    x = 178,904,574.96/14,757.88
  6. Step 6: Final answer
    x = 12,122.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.