Home / 8,022.30-12,034.05-2,178.78

Finding the Fourth Proportional to 8,022.30, 12,034.05 and 2,178.78

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Solution

The fourth proportional to 8,022.30, 12,034.05 and 2,178.78 is: 3,268.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,022.30 : 12,034.05 = 2,178.78 : x
  2. Step 2: Convert to fraction form
    8,022.30/12,034.05 = 2,178.78/x
  3. Step 3: Cross multiply
    8,022.30x = 12,034.05 × 2,178.78
  4. Step 4: Simplify right side
    8,022.30x = 26,219,547.46
  5. Step 5: Solve for x
    x = 26,219,547.46/8,022.30
  6. Step 6: Final answer
    x = 3,268.33

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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.