Home / 11,969.31-17,925.21-6,691.35

Finding the Fourth Proportional to 11,969.31, 17,925.21 and 6,691.35

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Solution

The fourth proportional to 11,969.31, 17,925.21 and 6,691.35 is: 10,020.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,969.31 : 17,925.21 = 6,691.35 : x
  2. Step 2: Convert to fraction form
    11,969.31/17,925.21 = 6,691.35/x
  3. Step 3: Cross multiply
    11,969.31x = 17,925.21 × 6,691.35
  4. Step 4: Simplify right side
    11,969.31x = 119,943,853.93
  5. Step 5: Solve for x
    x = 119,943,853.93/11,969.31
  6. Step 6: Final answer
    x = 10,020.95

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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.