Home / 11,428.80-17,143.17-3,637.59

Finding the Fourth Proportional to 11,428.80, 17,143.17 and 3,637.59

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Solution

The fourth proportional to 11,428.80, 17,143.17 and 3,637.59 is: 5,456.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.80 : 17,143.17 = 3,637.59 : x
  2. Step 2: Convert to fraction form
    11,428.80/17,143.17 = 3,637.59/x
  3. Step 3: Cross multiply
    11,428.80x = 17,143.17 × 3,637.59
  4. Step 4: Simplify right side
    11,428.80x = 62,359,823.76
  5. Step 5: Solve for x
    x = 62,359,823.76/11,428.80
  6. Step 6: Final answer
    x = 5,456.38

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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.