Home / 8,108.40-12,162.56-2,265.14

Finding the Fourth Proportional to 8,108.40, 12,162.56 and 2,265.14

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Solution

The fourth proportional to 8,108.40, 12,162.56 and 2,265.14 is: 3,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.40 : 12,162.56 = 2,265.14 : x
  2. Step 2: Convert to fraction form
    8,108.40/12,162.56 = 2,265.14/x
  3. Step 3: Cross multiply
    8,108.40x = 12,162.56 × 2,265.14
  4. Step 4: Simplify right side
    8,108.40x = 27,549,901.16
  5. Step 5: Solve for x
    x = 27,549,901.16/8,108.40
  6. Step 6: Final answer
    x = 3,397.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.