Home / 10,887.75-15,025.10-5,919.75

Finding the Fourth Proportional to 10,887.75, 15,025.10 and 5,919.75

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Solution

The fourth proportional to 10,887.75, 15,025.10 and 5,919.75 is: 8,169.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.75 : 15,025.10 = 5,919.75 : x
  2. Step 2: Convert to fraction form
    10,887.75/15,025.10 = 5,919.75/x
  3. Step 3: Cross multiply
    10,887.75x = 15,025.10 × 5,919.75
  4. Step 4: Simplify right side
    10,887.75x = 88,944,806.13
  5. Step 5: Solve for x
    x = 88,944,806.13/10,887.75
  6. Step 6: Final answer
    x = 8,169.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.