Home / 12,732.77-19,110.09-7,191.56

Finding the Fourth Proportional to 12,732.77, 19,110.09 and 7,191.56

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Solution

The fourth proportional to 12,732.77, 19,110.09 and 7,191.56 is: 10,793.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,732.77 : 19,110.09 = 7,191.56 : x
  2. Step 2: Convert to fraction form
    12,732.77/19,110.09 = 7,191.56/x
  3. Step 3: Cross multiply
    12,732.77x = 19,110.09 × 7,191.56
  4. Step 4: Simplify right side
    12,732.77x = 137,431,358.84
  5. Step 5: Solve for x
    x = 137,431,358.84/12,732.77
  6. Step 6: Final answer
    x = 10,793.52

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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.