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Finding the Fourth Proportional to 8,758.81, 13,082.34 and 7,924.58

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Solution

The fourth proportional to 8,758.81, 13,082.34 and 7,924.58 is: 11,836.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.81 : 13,082.34 = 7,924.58 : x
  2. Step 2: Convert to fraction form
    8,758.81/13,082.34 = 7,924.58/x
  3. Step 3: Cross multiply
    8,758.81x = 13,082.34 × 7,924.58
  4. Step 4: Simplify right side
    8,758.81x = 103,672,049.92
  5. Step 5: Solve for x
    x = 103,672,049.92/8,758.81
  6. Step 6: Final answer
    x = 11,836.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.