Home / 18,428.92-25,424.68-11,343.04

Finding the Fourth Proportional to 18,428.92, 25,424.68 and 11,343.04

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Solution

The fourth proportional to 18,428.92, 25,424.68 and 11,343.04 is: 15,648.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.92 : 25,424.68 = 11,343.04 : x
  2. Step 2: Convert to fraction form
    18,428.92/25,424.68 = 11,343.04/x
  3. Step 3: Cross multiply
    18,428.92x = 25,424.68 × 11,343.04
  4. Step 4: Simplify right side
    18,428.92x = 288,393,162.23
  5. Step 5: Solve for x
    x = 288,393,162.23/18,428.92
  6. Step 6: Final answer
    x = 15,648.95

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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.