Home / 18,279.58-25,225.77-10,321.65

Finding the Fourth Proportional to 18,279.58, 25,225.77 and 10,321.65

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Solution

The fourth proportional to 18,279.58, 25,225.77 and 10,321.65 is: 14,243.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.58 : 25,225.77 = 10,321.65 : x
  2. Step 2: Convert to fraction form
    18,279.58/25,225.77 = 10,321.65/x
  3. Step 3: Cross multiply
    18,279.58x = 25,225.77 × 10,321.65
  4. Step 4: Simplify right side
    18,279.58x = 260,371,568.92
  5. Step 5: Solve for x
    x = 260,371,568.92/18,279.58
  6. Step 6: Final answer
    x = 14,243.85

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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.