Home / 8,474.09-11,691.56-4,888.56

Finding the Fourth Proportional to 8,474.09, 11,691.56 and 4,888.56

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Solution

The fourth proportional to 8,474.09, 11,691.56 and 4,888.56 is: 6,744.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.09 : 11,691.56 = 4,888.56 : x
  2. Step 2: Convert to fraction form
    8,474.09/11,691.56 = 4,888.56/x
  3. Step 3: Cross multiply
    8,474.09x = 11,691.56 × 4,888.56
  4. Step 4: Simplify right side
    8,474.09x = 57,154,892.55
  5. Step 5: Solve for x
    x = 57,154,892.55/8,474.09
  6. Step 6: Final answer
    x = 6,744.66

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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.