Home / 10,990.64-15,167.09-5,954.90

Finding the Fourth Proportional to 10,990.64, 15,167.09 and 5,954.90

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Solution

The fourth proportional to 10,990.64, 15,167.09 and 5,954.90 is: 8,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.64 : 15,167.09 = 5,954.90 : x
  2. Step 2: Convert to fraction form
    10,990.64/15,167.09 = 5,954.90/x
  3. Step 3: Cross multiply
    10,990.64x = 15,167.09 × 5,954.90
  4. Step 4: Simplify right side
    10,990.64x = 90,318,398.63
  5. Step 5: Solve for x
    x = 90,318,398.63/10,990.64
  6. Step 6: Final answer
    x = 8,217.76

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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.