Home / 12,476.13-18,717.71-5,456.76

Finding the Fourth Proportional to 12,476.13, 18,717.71 and 5,456.76

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Solution

The fourth proportional to 12,476.13, 18,717.71 and 5,456.76 is: 8,186.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476.13 : 18,717.71 = 5,456.76 : x
  2. Step 2: Convert to fraction form
    12,476.13/18,717.71 = 5,456.76/x
  3. Step 3: Cross multiply
    12,476.13x = 18,717.71 × 5,456.76
  4. Step 4: Simplify right side
    12,476.13x = 102,138,023.94
  5. Step 5: Solve for x
    x = 102,138,023.94/12,476.13
  6. Step 6: Final answer
    x = 8,186.68

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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.