Home / 10,685.25-16,031.66-7,758.45

Finding the Fourth Proportional to 10,685.25, 16,031.66 and 7,758.45

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Solution

The fourth proportional to 10,685.25, 16,031.66 and 7,758.45 is: 11,640.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,685.25 : 16,031.66 = 7,758.45 : x
  2. Step 2: Convert to fraction form
    10,685.25/16,031.66 = 7,758.45/x
  3. Step 3: Cross multiply
    10,685.25x = 16,031.66 × 7,758.45
  4. Step 4: Simplify right side
    10,685.25x = 124,380,793.73
  5. Step 5: Solve for x
    x = 124,380,793.73/10,685.25
  6. Step 6: Final answer
    x = 11,640.42

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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.