Home / 10,047.11-15,080.00-5,120.44

Finding the Fourth Proportional to 10,047.11, 15,080.00 and 5,120.44

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Solution

The fourth proportional to 10,047.11, 15,080.00 and 5,120.44 is: 7,685.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,047.11 : 15,080.00 = 5,120.44 : x
  2. Step 2: Convert to fraction form
    10,047.11/15,080.00 = 5,120.44/x
  3. Step 3: Cross multiply
    10,047.11x = 15,080.00 × 5,120.44
  4. Step 4: Simplify right side
    10,047.11x = 77,216,171.90
  5. Step 5: Solve for x
    x = 77,216,171.90/10,047.11
  6. Step 6: Final answer
    x = 7,685.42

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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.