Home / 8,918.40-13,385.70-5,998.76

Finding the Fourth Proportional to 8,918.40, 13,385.70 and 5,998.76

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Solution

The fourth proportional to 8,918.40, 13,385.70 and 5,998.76 is: 9,003.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.40 : 13,385.70 = 5,998.76 : x
  2. Step 2: Convert to fraction form
    8,918.40/13,385.70 = 5,998.76/x
  3. Step 3: Cross multiply
    8,918.40x = 13,385.70 × 5,998.76
  4. Step 4: Simplify right side
    8,918.40x = 80,297,601.73
  5. Step 5: Solve for x
    x = 80,297,601.73/8,918.40
  6. Step 6: Final answer
    x = 9,003.59

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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.