Home / 12,708.12-19,062.79-6,139.83

Finding the Fourth Proportional to 12,708.12, 19,062.79 and 6,139.83

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Solution

The fourth proportional to 12,708.12, 19,062.79 and 6,139.83 is: 9,210.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,708.12 : 19,062.79 = 6,139.83 : x
  2. Step 2: Convert to fraction form
    12,708.12/19,062.79 = 6,139.83/x
  3. Step 3: Cross multiply
    12,708.12x = 19,062.79 × 6,139.83
  4. Step 4: Simplify right side
    12,708.12x = 117,042,380.60
  5. Step 5: Solve for x
    x = 117,042,380.60/12,708.12
  6. Step 6: Final answer
    x = 9,210.04

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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.