Home / 8,652.89-12,979.44-3,110.20

Finding the Fourth Proportional to 8,652.89, 12,979.44 and 3,110.20

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Solution

The fourth proportional to 8,652.89, 12,979.44 and 3,110.20 is: 4,665.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,652.89 : 12,979.44 = 3,110.20 : x
  2. Step 2: Convert to fraction form
    8,652.89/12,979.44 = 3,110.20/x
  3. Step 3: Cross multiply
    8,652.89x = 12,979.44 × 3,110.20
  4. Step 4: Simplify right side
    8,652.89x = 40,368,621.84
  5. Step 5: Solve for x
    x = 40,368,621.84/8,652.89
  6. Step 6: Final answer
    x = 4,665.33

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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.