Home / 18,306.86-25,262.79-9,923.18

Finding the Fourth Proportional to 18,306.86, 25,262.79 and 9,923.18

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Solution

The fourth proportional to 18,306.86, 25,262.79 and 9,923.18 is: 13,693.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306.86 : 25,262.79 = 9,923.18 : x
  2. Step 2: Convert to fraction form
    18,306.86/25,262.79 = 9,923.18/x
  3. Step 3: Cross multiply
    18,306.86x = 25,262.79 × 9,923.18
  4. Step 4: Simplify right side
    18,306.86x = 250,687,212.47
  5. Step 5: Solve for x
    x = 250,687,212.47/18,306.86
  6. Step 6: Final answer
    x = 13,693.62

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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.