Home / 10,300.88-15,414.36-8,918.96

Finding the Fourth Proportional to 10,300.88, 15,414.36 and 8,918.96

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Solution

The fourth proportional to 10,300.88, 15,414.36 and 8,918.96 is: 13,346.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,300.88 : 15,414.36 = 8,918.96 : x
  2. Step 2: Convert to fraction form
    10,300.88/15,414.36 = 8,918.96/x
  3. Step 3: Cross multiply
    10,300.88x = 15,414.36 × 8,918.96
  4. Step 4: Simplify right side
    10,300.88x = 137,480,060.27
  5. Step 5: Solve for x
    x = 137,480,060.27/10,300.88
  6. Step 6: Final answer
    x = 13,346.44

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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.