Home / 9,385.29-12,936.68-6,359.49

Finding the Fourth Proportional to 9,385.29, 12,936.68 and 6,359.49

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Solution

The fourth proportional to 9,385.29, 12,936.68 and 6,359.49 is: 8,765.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,385.29 : 12,936.68 = 6,359.49 : x
  2. Step 2: Convert to fraction form
    9,385.29/12,936.68 = 6,359.49/x
  3. Step 3: Cross multiply
    9,385.29x = 12,936.68 × 6,359.49
  4. Step 4: Simplify right side
    9,385.29x = 82,270,655.30
  5. Step 5: Solve for x
    x = 82,270,655.30/9,385.29
  6. Step 6: Final answer
    x = 8,765.92

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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.