Home / 8,151.15-11,248.42-4,425.15

Finding the Fourth Proportional to 8,151.15, 11,248.42 and 4,425.15

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Solution

The fourth proportional to 8,151.15, 11,248.42 and 4,425.15 is: 6,106.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.15 : 11,248.42 = 4,425.15 : x
  2. Step 2: Convert to fraction form
    8,151.15/11,248.42 = 4,425.15/x
  3. Step 3: Cross multiply
    8,151.15x = 11,248.42 × 4,425.15
  4. Step 4: Simplify right side
    8,151.15x = 49,775,979.42
  5. Step 5: Solve for x
    x = 49,775,979.42/8,151.15
  6. Step 6: Final answer
    x = 6,106.62

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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.