Home / 8,400.12-11,591.40-5,042.28

Finding the Fourth Proportional to 8,400.12, 11,591.40 and 5,042.28

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Solution

The fourth proportional to 8,400.12, 11,591.40 and 5,042.28 is: 6,957.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,400.12 : 11,591.40 = 5,042.28 : x
  2. Step 2: Convert to fraction form
    8,400.12/11,591.40 = 5,042.28/x
  3. Step 3: Cross multiply
    8,400.12x = 11,591.40 × 5,042.28
  4. Step 4: Simplify right side
    8,400.12x = 58,447,084.39
  5. Step 5: Solve for x
    x = 58,447,084.39/8,400.12
  6. Step 6: Final answer
    x = 6,957.89

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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.