Home / 12,545.76-18,820.47-6,699.18

Finding the Fourth Proportional to 12,545.76, 18,820.47 and 6,699.18

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Solution

The fourth proportional to 12,545.76, 18,820.47 and 6,699.18 is: 10,049.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.76 : 18,820.47 = 6,699.18 : x
  2. Step 2: Convert to fraction form
    12,545.76/18,820.47 = 6,699.18/x
  3. Step 3: Cross multiply
    12,545.76x = 18,820.47 × 6,699.18
  4. Step 4: Simplify right side
    12,545.76x = 126,081,716.21
  5. Step 5: Solve for x
    x = 126,081,716.21/12,545.76
  6. Step 6: Final answer
    x = 10,049.75

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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.