Home / 8,678.30-13,003.82-6,708.76

Finding the Fourth Proportional to 8,678.30, 13,003.82 and 6,708.76

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Solution

The fourth proportional to 8,678.30, 13,003.82 and 6,708.76 is: 10,052.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.30 : 13,003.82 = 6,708.76 : x
  2. Step 2: Convert to fraction form
    8,678.30/13,003.82 = 6,708.76/x
  3. Step 3: Cross multiply
    8,678.30x = 13,003.82 × 6,708.76
  4. Step 4: Simplify right side
    8,678.30x = 87,239,507.46
  5. Step 5: Solve for x
    x = 87,239,507.46/8,678.30
  6. Step 6: Final answer
    x = 10,052.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.