Home / 10,972.38-15,141.60-6,256.56

Finding the Fourth Proportional to 10,972.38, 15,141.60 and 6,256.56

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Solution

The fourth proportional to 10,972.38, 15,141.60 and 6,256.56 is: 8,633.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.38 : 15,141.60 = 6,256.56 : x
  2. Step 2: Convert to fraction form
    10,972.38/15,141.60 = 6,256.56/x
  3. Step 3: Cross multiply
    10,972.38x = 15,141.60 × 6,256.56
  4. Step 4: Simplify right side
    10,972.38x = 94,734,328.90
  5. Step 5: Solve for x
    x = 94,734,328.90/10,972.38
  6. Step 6: Final answer
    x = 8,633.89

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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.