Home / 16,874.28-25,290.90-12,700.87

Finding the Fourth Proportional to 16,874.28, 25,290.90 and 12,700.87

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Solution

The fourth proportional to 16,874.28, 25,290.90 and 12,700.87 is: 19,035.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,874.28 : 25,290.90 = 12,700.87 : x
  2. Step 2: Convert to fraction form
    16,874.28/25,290.90 = 12,700.87/x
  3. Step 3: Cross multiply
    16,874.28x = 25,290.90 × 12,700.87
  4. Step 4: Simplify right side
    16,874.28x = 321,216,369.86
  5. Step 5: Solve for x
    x = 321,216,369.86/16,874.28
  6. Step 6: Final answer
    x = 19,035.86

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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.