Home / 10,935.12-16,394.88-5,387.16

Finding the Fourth Proportional to 10,935.12, 16,394.88 and 5,387.16

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Solution

The fourth proportional to 10,935.12, 16,394.88 and 5,387.16 is: 8,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,935.12 : 16,394.88 = 5,387.16 : x
  2. Step 2: Convert to fraction form
    10,935.12/16,394.88 = 5,387.16/x
  3. Step 3: Cross multiply
    10,935.12x = 16,394.88 × 5,387.16
  4. Step 4: Simplify right side
    10,935.12x = 88,321,841.74
  5. Step 5: Solve for x
    x = 88,321,841.74/10,935.12
  6. Step 6: Final answer
    x = 8,076.90

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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.