Home / 10,958.30-16,418.55-5,102.90

Finding the Fourth Proportional to 10,958.30, 16,418.55 and 5,102.90

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Solution

The fourth proportional to 10,958.30, 16,418.55 and 5,102.90 is: 7,645.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,958.30 : 16,418.55 = 5,102.90 : x
  2. Step 2: Convert to fraction form
    10,958.30/16,418.55 = 5,102.90/x
  3. Step 3: Cross multiply
    10,958.30x = 16,418.55 × 5,102.90
  4. Step 4: Simplify right side
    10,958.30x = 83,782,218.80
  5. Step 5: Solve for x
    x = 83,782,218.80/10,958.30
  6. Step 6: Final answer
    x = 7,645.55

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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.