Home / 17,878.26-24,671.30-9,919.92

Finding the Fourth Proportional to 17,878.26, 24,671.30 and 9,919.92

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Solution

The fourth proportional to 17,878.26, 24,671.30 and 9,919.92 is: 13,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,878.26 : 24,671.30 = 9,919.92 : x
  2. Step 2: Convert to fraction form
    17,878.26/24,671.30 = 9,919.92/x
  3. Step 3: Cross multiply
    17,878.26x = 24,671.30 × 9,919.92
  4. Step 4: Simplify right side
    17,878.26x = 244,737,322.30
  5. Step 5: Solve for x
    x = 244,737,322.30/17,878.26
  6. Step 6: Final answer
    x = 13,689.10

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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.