Home / 8,938.46-13,407.70-3,091.88

Finding the Fourth Proportional to 8,938.46, 13,407.70 and 3,091.88

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Solution

The fourth proportional to 8,938.46, 13,407.70 and 3,091.88 is: 4,637.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.46 : 13,407.70 = 3,091.88 : x
  2. Step 2: Convert to fraction form
    8,938.46/13,407.70 = 3,091.88/x
  3. Step 3: Cross multiply
    8,938.46x = 13,407.70 × 3,091.88
  4. Step 4: Simplify right side
    8,938.46x = 41,454,999.48
  5. Step 5: Solve for x
    x = 41,454,999.48/8,938.46
  6. Step 6: Final answer
    x = 4,637.82

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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.