Home / 10,990.74-15,167.24-5,954.96

Finding the Fourth Proportional to 10,990.74, 15,167.24 and 5,954.96

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Solution

The fourth proportional to 10,990.74, 15,167.24 and 5,954.96 is: 8,217.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.74 : 15,167.24 = 5,954.96 : x
  2. Step 2: Convert to fraction form
    10,990.74/15,167.24 = 5,954.96/x
  3. Step 3: Cross multiply
    10,990.74x = 15,167.24 × 5,954.96
  4. Step 4: Simplify right side
    10,990.74x = 90,320,307.51
  5. Step 5: Solve for x
    x = 90,320,307.51/10,990.74
  6. Step 6: Final answer
    x = 8,217.85

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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.