Home / 12,585.98-18,877.67-4,265.78

Finding the Fourth Proportional to 12,585.98, 18,877.67 and 4,265.78

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Solution

The fourth proportional to 12,585.98, 18,877.67 and 4,265.78 is: 6,398.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585.98 : 18,877.67 = 4,265.78 : x
  2. Step 2: Convert to fraction form
    12,585.98/18,877.67 = 4,265.78/x
  3. Step 3: Cross multiply
    12,585.98x = 18,877.67 × 4,265.78
  4. Step 4: Simplify right side
    12,585.98x = 80,527,965.80
  5. Step 5: Solve for x
    x = 80,527,965.80/12,585.98
  6. Step 6: Final answer
    x = 6,398.23

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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.