Home / 17,878.68-24,672.77-9,921.04

Finding the Fourth Proportional to 17,878.68, 24,672.77 and 9,921.04

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Solution

The fourth proportional to 17,878.68, 24,672.77 and 9,921.04 is: 13,691.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,878.68 : 24,672.77 = 9,921.04 : x
  2. Step 2: Convert to fraction form
    17,878.68/24,672.77 = 9,921.04/x
  3. Step 3: Cross multiply
    17,878.68x = 24,672.77 × 9,921.04
  4. Step 4: Simplify right side
    17,878.68x = 244,779,538.08
  5. Step 5: Solve for x
    x = 244,779,538.08/17,878.68
  6. Step 6: Final answer
    x = 13,691.14

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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.