Home / 18,315.75-25,279.52-10,358.31

Finding the Fourth Proportional to 18,315.75, 25,279.52 and 10,358.31

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Solution

The fourth proportional to 18,315.75, 25,279.52 and 10,358.31 is: 14,296.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.75 : 25,279.52 = 10,358.31 : x
  2. Step 2: Convert to fraction form
    18,315.75/25,279.52 = 10,358.31/x
  3. Step 3: Cross multiply
    18,315.75x = 25,279.52 × 10,358.31
  4. Step 4: Simplify right side
    18,315.75x = 261,853,053.02
  5. Step 5: Solve for x
    x = 261,853,053.02/18,315.75
  6. Step 6: Final answer
    x = 14,296.61

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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.