Home / 12,691.85-19,032.53-4,793.02

Finding the Fourth Proportional to 12,691.85, 19,032.53 and 4,793.02

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Solution

The fourth proportional to 12,691.85, 19,032.53 and 4,793.02 is: 7,187.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691.85 : 19,032.53 = 4,793.02 : x
  2. Step 2: Convert to fraction form
    12,691.85/19,032.53 = 4,793.02/x
  3. Step 3: Cross multiply
    12,691.85x = 19,032.53 × 4,793.02
  4. Step 4: Simplify right side
    12,691.85x = 91,223,296.94
  5. Step 5: Solve for x
    x = 91,223,296.94/12,691.85
  6. Step 6: Final answer
    x = 7,187.55

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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.