Home / 14,565.72-20,100.68-8,278.12

Finding the Fourth Proportional to 14,565.72, 20,100.68 and 8,278.12

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Solution

The fourth proportional to 14,565.72, 20,100.68 and 8,278.12 is: 11,423.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,565.72 : 20,100.68 = 8,278.12 : x
  2. Step 2: Convert to fraction form
    14,565.72/20,100.68 = 8,278.12/x
  3. Step 3: Cross multiply
    14,565.72x = 20,100.68 × 8,278.12
  4. Step 4: Simplify right side
    14,565.72x = 166,395,841.12
  5. Step 5: Solve for x
    x = 166,395,841.12/14,565.72
  6. Step 6: Final answer
    x = 11,423.80

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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.