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Finding the Fourth Proportional to 11,877.32, 17,815.86 and 4,950.20

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Solution

The fourth proportional to 11,877.32, 17,815.86 and 4,950.20 is: 7,425.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,877.32 : 17,815.86 = 4,950.20 : x
  2. Step 2: Convert to fraction form
    11,877.32/17,815.86 = 4,950.20/x
  3. Step 3: Cross multiply
    11,877.32x = 17,815.86 × 4,950.20
  4. Step 4: Simplify right side
    11,877.32x = 88,192,070.17
  5. Step 5: Solve for x
    x = 88,192,070.17/11,877.32
  6. Step 6: Final answer
    x = 7,425.25

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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.