Home / 12,319.43-17,000.79-6,654.17

Finding the Fourth Proportional to 12,319.43, 17,000.79 and 6,654.17

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Solution

The fourth proportional to 12,319.43, 17,000.79 and 6,654.17 is: 9,182.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319.43 : 17,000.79 = 6,654.17 : x
  2. Step 2: Convert to fraction form
    12,319.43/17,000.79 = 6,654.17/x
  3. Step 3: Cross multiply
    12,319.43x = 17,000.79 × 6,654.17
  4. Step 4: Simplify right side
    12,319.43x = 113,126,189.30
  5. Step 5: Solve for x
    x = 113,126,189.30/12,319.43
  6. Step 6: Final answer
    x = 9,182.75

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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.