Home / 18,315.86-25,273.17-10,357.92

Finding the Fourth Proportional to 18,315.86, 25,273.17 and 10,357.92

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Solution

The fourth proportional to 18,315.86, 25,273.17 and 10,357.92 is: 14,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.86 : 25,273.17 = 10,357.92 : x
  2. Step 2: Convert to fraction form
    18,315.86/25,273.17 = 10,357.92/x
  3. Step 3: Cross multiply
    18,315.86x = 25,273.17 × 10,357.92
  4. Step 4: Simplify right side
    18,315.86x = 261,777,473.01
  5. Step 5: Solve for x
    x = 261,777,473.01/18,315.86
  6. Step 6: Final answer
    x = 14,292.40

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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.