Home / 8,769.20-12,099.87-4,992.14

Finding the Fourth Proportional to 8,769.20, 12,099.87 and 4,992.14

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Solution

The fourth proportional to 8,769.20, 12,099.87 and 4,992.14 is: 6,888.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.20 : 12,099.87 = 4,992.14 : x
  2. Step 2: Convert to fraction form
    8,769.20/12,099.87 = 4,992.14/x
  3. Step 3: Cross multiply
    8,769.20x = 12,099.87 × 4,992.14
  4. Step 4: Simplify right side
    8,769.20x = 60,404,184.52
  5. Step 5: Solve for x
    x = 60,404,184.52/8,769.20
  6. Step 6: Final answer
    x = 6,888.22

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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.