Home / 18,318.66-25,279.75-10,360.71

Finding the Fourth Proportional to 18,318.66, 25,279.75 and 10,360.71

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Solution

The fourth proportional to 18,318.66, 25,279.75 and 10,360.71 is: 14,297.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318.66 : 25,279.75 = 10,360.71 : x
  2. Step 2: Convert to fraction form
    18,318.66/25,279.75 = 10,360.71/x
  3. Step 3: Cross multiply
    18,318.66x = 25,279.75 × 10,360.71
  4. Step 4: Simplify right side
    18,318.66x = 261,916,113.29
  5. Step 5: Solve for x
    x = 261,916,113.29/18,318.66
  6. Step 6: Final answer
    x = 14,297.78

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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.