Home / 18,823.97-25,974.12-10,864.71

Finding the Fourth Proportional to 18,823.97, 25,974.12 and 10,864.71

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Solution

The fourth proportional to 18,823.97, 25,974.12 and 10,864.71 is: 14,991.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,823.97 : 25,974.12 = 10,864.71 : x
  2. Step 2: Convert to fraction form
    18,823.97/25,974.12 = 10,864.71/x
  3. Step 3: Cross multiply
    18,823.97x = 25,974.12 × 10,864.71
  4. Step 4: Simplify right side
    18,823.97x = 282,201,281.31
  5. Step 5: Solve for x
    x = 282,201,281.31/18,823.97
  6. Step 6: Final answer
    x = 14,991.59

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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.