Home / 10,028.80-15,043.20-9,372.70

Finding the Fourth Proportional to 10,028.80, 15,043.20 and 9,372.70

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Solution

The fourth proportional to 10,028.80, 15,043.20 and 9,372.70 is: 14,059.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,028.80 : 15,043.20 = 9,372.70 : x
  2. Step 2: Convert to fraction form
    10,028.80/15,043.20 = 9,372.70/x
  3. Step 3: Cross multiply
    10,028.80x = 15,043.20 × 9,372.70
  4. Step 4: Simplify right side
    10,028.80x = 140,995,400.64
  5. Step 5: Solve for x
    x = 140,995,400.64/10,028.80
  6. Step 6: Final answer
    x = 14,059.05

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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.