Home / 18,947.64-28,421.46-6,632.76

Finding the Fourth Proportional to 18,947.64, 28,421.46 and 6,632.76

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Solution

The fourth proportional to 18,947.64, 28,421.46 and 6,632.76 is: 9,949.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.64 : 28,421.46 = 6,632.76 : x
  2. Step 2: Convert to fraction form
    18,947.64/28,421.46 = 6,632.76/x
  3. Step 3: Cross multiply
    18,947.64x = 28,421.46 × 6,632.76
  4. Step 4: Simplify right side
    18,947.64x = 188,512,723.03
  5. Step 5: Solve for x
    x = 188,512,723.03/18,947.64
  6. Step 6: Final answer
    x = 9,949.14

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.