Home / 14,863.11-20,510.85-8,148.78

Finding the Fourth Proportional to 14,863.11, 20,510.85 and 8,148.78

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Solution

The fourth proportional to 14,863.11, 20,510.85 and 8,148.78 is: 11,245.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,863.11 : 20,510.85 = 8,148.78 : x
  2. Step 2: Convert to fraction form
    14,863.11/20,510.85 = 8,148.78/x
  3. Step 3: Cross multiply
    14,863.11x = 20,510.85 × 8,148.78
  4. Step 4: Simplify right side
    14,863.11x = 167,138,404.26
  5. Step 5: Solve for x
    x = 167,138,404.26/14,863.11
  6. Step 6: Final answer
    x = 11,245.18

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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.