Home / 18,424.05-25,417.97-11,338.17

Finding the Fourth Proportional to 18,424.05, 25,417.97 and 11,338.17

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Solution

The fourth proportional to 18,424.05, 25,417.97 and 11,338.17 is: 15,642.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,424.05 : 25,417.97 = 11,338.17 : x
  2. Step 2: Convert to fraction form
    18,424.05/25,417.97 = 11,338.17/x
  3. Step 3: Cross multiply
    18,424.05x = 25,417.97 × 11,338.17
  4. Step 4: Simplify right side
    18,424.05x = 288,193,081.13
  5. Step 5: Solve for x
    x = 288,193,081.13/18,424.05
  6. Step 6: Final answer
    x = 15,642.23

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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.