Home / 18,654.24-25,721.52-13,930.56

Finding the Fourth Proportional to 18,654.24, 25,721.52 and 13,930.56

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Solution

The fourth proportional to 18,654.24, 25,721.52 and 13,930.56 is: 19,208.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654.24 : 25,721.52 = 13,930.56 : x
  2. Step 2: Convert to fraction form
    18,654.24/25,721.52 = 13,930.56/x
  3. Step 3: Cross multiply
    18,654.24x = 25,721.52 × 13,930.56
  4. Step 4: Simplify right side
    18,654.24x = 358,315,177.65
  5. Step 5: Solve for x
    x = 358,315,177.65/18,654.24
  6. Step 6: Final answer
    x = 19,208.24

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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.