Home / 10,806.31-16,209.47-8,344.72

Finding the Fourth Proportional to 10,806.31, 16,209.47 and 8,344.72

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Solution

The fourth proportional to 10,806.31, 16,209.47 and 8,344.72 is: 12,517.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,806.31 : 16,209.47 = 8,344.72 : x
  2. Step 2: Convert to fraction form
    10,806.31/16,209.47 = 8,344.72/x
  3. Step 3: Cross multiply
    10,806.31x = 16,209.47 × 8,344.72
  4. Step 4: Simplify right side
    10,806.31x = 135,263,488.50
  5. Step 5: Solve for x
    x = 135,263,488.50/10,806.31
  6. Step 6: Final answer
    x = 12,517.08

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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.