Home / 10,991.17-15,167.28-6,274.54

Finding the Fourth Proportional to 10,991.17, 15,167.28 and 6,274.54

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Solution

The fourth proportional to 10,991.17, 15,167.28 and 6,274.54 is: 8,658.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.17 : 15,167.28 = 6,274.54 : x
  2. Step 2: Convert to fraction form
    10,991.17/15,167.28 = 6,274.54/x
  3. Step 3: Cross multiply
    10,991.17x = 15,167.28 × 6,274.54
  4. Step 4: Simplify right side
    10,991.17x = 95,167,705.05
  5. Step 5: Solve for x
    x = 95,167,705.05/10,991.17
  6. Step 6: Final answer
    x = 8,658.56

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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.