Home / 18,318.32-25,279.57-10,765.65

Finding the Fourth Proportional to 18,318.32, 25,279.57 and 10,765.65

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Solution

The fourth proportional to 18,318.32, 25,279.57 and 10,765.65 is: 14,856.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318.32 : 25,279.57 = 10,765.65 : x
  2. Step 2: Convert to fraction form
    18,318.32/25,279.57 = 10,765.65/x
  3. Step 3: Cross multiply
    18,318.32x = 25,279.57 × 10,765.65
  4. Step 4: Simplify right side
    18,318.32x = 272,150,975.86
  5. Step 5: Solve for x
    x = 272,150,975.86/18,318.32
  6. Step 6: Final answer
    x = 14,856.77

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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.