Home / 11,747.38-16,212.14-7,761.52

Finding the Fourth Proportional to 11,747.38, 16,212.14 and 7,761.52

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Solution

The fourth proportional to 11,747.38, 16,212.14 and 7,761.52 is: 10,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.38 : 16,212.14 = 7,761.52 : x
  2. Step 2: Convert to fraction form
    11,747.38/16,212.14 = 7,761.52/x
  3. Step 3: Cross multiply
    11,747.38x = 16,212.14 × 7,761.52
  4. Step 4: Simplify right side
    11,747.38x = 125,830,848.85
  5. Step 5: Solve for x
    x = 125,830,848.85/11,747.38
  6. Step 6: Final answer
    x = 10,711.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.