Home / 15,581.64-21,502.60-8,508.04

Finding the Fourth Proportional to 15,581.64, 21,502.60 and 8,508.04

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Solution

The fourth proportional to 15,581.64, 21,502.60 and 8,508.04 is: 11,741.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,581.64 : 21,502.60 = 8,508.04 : x
  2. Step 2: Convert to fraction form
    15,581.64/21,502.60 = 8,508.04/x
  3. Step 3: Cross multiply
    15,581.64x = 21,502.60 × 8,508.04
  4. Step 4: Simplify right side
    15,581.64x = 182,944,980.90
  5. Step 5: Solve for x
    x = 182,944,980.90/15,581.64
  6. Step 6: Final answer
    x = 11,741.06

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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.