Home / 8,645.12-12,943.20-6,719.84

Finding the Fourth Proportional to 8,645.12, 12,943.20 and 6,719.84

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Solution

The fourth proportional to 8,645.12, 12,943.20 and 6,719.84 is: 10,060.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.12 : 12,943.20 = 6,719.84 : x
  2. Step 2: Convert to fraction form
    8,645.12/12,943.20 = 6,719.84/x
  3. Step 3: Cross multiply
    8,645.12x = 12,943.20 × 6,719.84
  4. Step 4: Simplify right side
    8,645.12x = 86,976,233.09
  5. Step 5: Solve for x
    x = 86,976,233.09/8,645.12
  6. Step 6: Final answer
    x = 10,060.73

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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.