Home / 10,631.28-15,947.08-2,841.20

Finding the Fourth Proportional to 10,631.28, 15,947.08 and 2,841.20

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Solution

The fourth proportional to 10,631.28, 15,947.08 and 2,841.20 is: 4,261.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,631.28 : 15,947.08 = 2,841.20 : x
  2. Step 2: Convert to fraction form
    10,631.28/15,947.08 = 2,841.20/x
  3. Step 3: Cross multiply
    10,631.28x = 15,947.08 × 2,841.20
  4. Step 4: Simplify right side
    10,631.28x = 45,308,843.70
  5. Step 5: Solve for x
    x = 45,308,843.70/10,631.28
  6. Step 6: Final answer
    x = 4,261.84

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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.