Home / 10,958.75-15,123.32-5,990.75

Finding the Fourth Proportional to 10,958.75, 15,123.32 and 5,990.75

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Solution

The fourth proportional to 10,958.75, 15,123.32 and 5,990.75 is: 8,267.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,958.75 : 15,123.32 = 5,990.75 : x
  2. Step 2: Convert to fraction form
    10,958.75/15,123.32 = 5,990.75/x
  3. Step 3: Cross multiply
    10,958.75x = 15,123.32 × 5,990.75
  4. Step 4: Simplify right side
    10,958.75x = 90,600,029.29
  5. Step 5: Solve for x
    x = 90,600,029.29/10,958.75
  6. Step 6: Final answer
    x = 8,267.37

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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.