Home / 12,976.18-17,882.14-9,433.78

Finding the Fourth Proportional to 12,976.18, 17,882.14 and 9,433.78

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Solution

The fourth proportional to 12,976.18, 17,882.14 and 9,433.78 is: 13,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,976.18 : 17,882.14 = 9,433.78 : x
  2. Step 2: Convert to fraction form
    12,976.18/17,882.14 = 9,433.78/x
  3. Step 3: Cross multiply
    12,976.18x = 17,882.14 × 9,433.78
  4. Step 4: Simplify right side
    12,976.18x = 168,696,174.69
  5. Step 5: Solve for x
    x = 168,696,174.69/12,976.18
  6. Step 6: Final answer
    x = 13,000.45

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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.