Home / 12,742.40-19,113.92-6,167.36

Finding the Fourth Proportional to 12,742.40, 19,113.92 and 6,167.36

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Solution

The fourth proportional to 12,742.40, 19,113.92 and 6,167.36 is: 9,251.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.40 : 19,113.92 = 6,167.36 : x
  2. Step 2: Convert to fraction form
    12,742.40/19,113.92 = 6,167.36/x
  3. Step 3: Cross multiply
    12,742.40x = 19,113.92 × 6,167.36
  4. Step 4: Simplify right side
    12,742.40x = 117,882,425.65
  5. Step 5: Solve for x
    x = 117,882,425.65/12,742.40
  6. Step 6: Final answer
    x = 9,251.19

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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.