Home / 10,107.02-15,167.41-5,180.11

Finding the Fourth Proportional to 10,107.02, 15,167.41 and 5,180.11

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Solution

The fourth proportional to 10,107.02, 15,167.41 and 5,180.11 is: 7,773.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,107.02 : 15,167.41 = 5,180.11 : x
  2. Step 2: Convert to fraction form
    10,107.02/15,167.41 = 5,180.11/x
  3. Step 3: Cross multiply
    10,107.02x = 15,167.41 × 5,180.11
  4. Step 4: Simplify right side
    10,107.02x = 78,568,944.41
  5. Step 5: Solve for x
    x = 78,568,944.41/10,107.02
  6. Step 6: Final answer
    x = 7,773.70

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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.