Home / 18,424.11-25,425.27-10,870.53

Finding the Fourth Proportional to 18,424.11, 25,425.27 and 10,870.53

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Solution

The fourth proportional to 18,424.11, 25,425.27 and 10,870.53 is: 15,001.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,424.11 : 25,425.27 = 10,870.53 : x
  2. Step 2: Convert to fraction form
    18,424.11/25,425.27 = 10,870.53/x
  3. Step 3: Cross multiply
    18,424.11x = 25,425.27 × 10,870.53
  4. Step 4: Simplify right side
    18,424.11x = 276,386,160.29
  5. Step 5: Solve for x
    x = 276,386,160.29/18,424.11
  6. Step 6: Final answer
    x = 15,001.33

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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.