Home / 12,591.75-18,887.67-5,095.20

Finding the Fourth Proportional to 12,591.75, 18,887.67 and 5,095.20

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Solution

The fourth proportional to 12,591.75, 18,887.67 and 5,095.20 is: 7,642.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591.75 : 18,887.67 = 5,095.20 : x
  2. Step 2: Convert to fraction form
    12,591.75/18,887.67 = 5,095.20/x
  3. Step 3: Cross multiply
    12,591.75x = 18,887.67 × 5,095.20
  4. Step 4: Simplify right side
    12,591.75x = 96,236,456.18
  5. Step 5: Solve for x
    x = 96,236,456.18/12,591.75
  6. Step 6: Final answer
    x = 7,642.82

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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.