Home / 12,691.88-19,032.57-4,793.06

Finding the Fourth Proportional to 12,691.88, 19,032.57 and 4,793.06

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Solution

The fourth proportional to 12,691.88, 19,032.57 and 4,793.06 is: 7,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691.88 : 19,032.57 = 4,793.06 : x
  2. Step 2: Convert to fraction form
    12,691.88/19,032.57 = 4,793.06/x
  3. Step 3: Cross multiply
    12,691.88x = 19,032.57 × 4,793.06
  4. Step 4: Simplify right side
    12,691.88x = 91,224,154.80
  5. Step 5: Solve for x
    x = 91,224,154.80/12,691.88
  6. Step 6: Final answer
    x = 7,187.60

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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.