Home / 18,562.20-25,618.86-13,813.71

Finding the Fourth Proportional to 18,562.20, 25,618.86 and 13,813.71

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Solution

The fourth proportional to 18,562.20, 25,618.86 and 13,813.71 is: 19,065.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,562.20 : 25,618.86 = 13,813.71 : x
  2. Step 2: Convert to fraction form
    18,562.20/25,618.86 = 13,813.71/x
  3. Step 3: Cross multiply
    18,562.20x = 25,618.86 × 13,813.71
  4. Step 4: Simplify right side
    18,562.20x = 353,891,502.57
  5. Step 5: Solve for x
    x = 353,891,502.57/18,562.20
  6. Step 6: Final answer
    x = 19,065.17

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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.