Home / 8,877.43-12,251.21-5,101.78

Finding the Fourth Proportional to 8,877.43, 12,251.21 and 5,101.78

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Solution

The fourth proportional to 8,877.43, 12,251.21 and 5,101.78 is: 7,040.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,877.43 : 12,251.21 = 5,101.78 : x
  2. Step 2: Convert to fraction form
    8,877.43/12,251.21 = 5,101.78/x
  3. Step 3: Cross multiply
    8,877.43x = 12,251.21 × 5,101.78
  4. Step 4: Simplify right side
    8,877.43x = 62,502,946.40
  5. Step 5: Solve for x
    x = 62,502,946.40/8,877.43
  6. Step 6: Final answer
    x = 7,040.66

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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.