Home / 11,874.32-16,387.68-7,162.48

Finding the Fourth Proportional to 11,874.32, 16,387.68 and 7,162.48

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Solution

The fourth proportional to 11,874.32, 16,387.68 and 7,162.48 is: 9,884.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,874.32 : 16,387.68 = 7,162.48 : x
  2. Step 2: Convert to fraction form
    11,874.32/16,387.68 = 7,162.48/x
  3. Step 3: Cross multiply
    11,874.32x = 16,387.68 × 7,162.48
  4. Step 4: Simplify right side
    11,874.32x = 117,376,430.25
  5. Step 5: Solve for x
    x = 117,376,430.25/11,874.32
  6. Step 6: Final answer
    x = 9,884.90

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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.