Home / 18,315.28-25,273.38-10,358.08

Finding the Fourth Proportional to 18,315.28, 25,273.38 and 10,358.08

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Solution

The fourth proportional to 18,315.28, 25,273.38 and 10,358.08 is: 14,293.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.28 : 25,273.38 = 10,358.08 : x
  2. Step 2: Convert to fraction form
    18,315.28/25,273.38 = 10,358.08/x
  3. Step 3: Cross multiply
    18,315.28x = 25,273.38 × 10,358.08
  4. Step 4: Simplify right side
    18,315.28x = 261,783,691.91
  5. Step 5: Solve for x
    x = 261,783,691.91/18,315.28
  6. Step 6: Final answer
    x = 14,293.19

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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.