Home / 10,900.75-15,043.04-5,932.75

Finding the Fourth Proportional to 10,900.75, 15,043.04 and 5,932.75

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Solution

The fourth proportional to 10,900.75, 15,043.04 and 5,932.75 is: 8,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,900.75 : 15,043.04 = 5,932.75 : x
  2. Step 2: Convert to fraction form
    10,900.75/15,043.04 = 5,932.75/x
  3. Step 3: Cross multiply
    10,900.75x = 15,043.04 × 5,932.75
  4. Step 4: Simplify right side
    10,900.75x = 89,246,565.90
  5. Step 5: Solve for x
    x = 89,246,565.90/10,900.75
  6. Step 6: Final answer
    x = 8,187.20

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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.