Home / 10,947.52-16,419.12-3,154.60

Finding the Fourth Proportional to 10,947.52, 16,419.12 and 3,154.60

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Solution

The fourth proportional to 10,947.52, 16,419.12 and 3,154.60 is: 4,731.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.52 : 16,419.12 = 3,154.60 : x
  2. Step 2: Convert to fraction form
    10,947.52/16,419.12 = 3,154.60/x
  3. Step 3: Cross multiply
    10,947.52x = 16,419.12 × 3,154.60
  4. Step 4: Simplify right side
    10,947.52x = 51,795,755.95
  5. Step 5: Solve for x
    x = 51,795,755.95/10,947.52
  6. Step 6: Final answer
    x = 4,731.28

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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.