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Finding the Fourth Proportional to 17,877.54, 24,671.44 and 9,919.88

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Solution

The fourth proportional to 17,877.54, 24,671.44 and 9,919.88 is: 13,689.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,877.54 : 24,671.44 = 9,919.88 : x
  2. Step 2: Convert to fraction form
    17,877.54/24,671.44 = 9,919.88/x
  3. Step 3: Cross multiply
    17,877.54x = 24,671.44 × 9,919.88
  4. Step 4: Simplify right side
    17,877.54x = 244,737,724.23
  5. Step 5: Solve for x
    x = 244,737,724.23/17,877.54
  6. Step 6: Final answer
    x = 13,689.68

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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.