Home / 8,938.17-13,405.62-3,389.67

Finding the Fourth Proportional to 8,938.17, 13,405.62 and 3,389.67

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Solution

The fourth proportional to 8,938.17, 13,405.62 and 3,389.67 is: 5,083.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.17 : 13,405.62 = 3,389.67 : x
  2. Step 2: Convert to fraction form
    8,938.17/13,405.62 = 3,389.67/x
  3. Step 3: Cross multiply
    8,938.17x = 13,405.62 × 3,389.67
  4. Step 4: Simplify right side
    8,938.17x = 45,440,627.95
  5. Step 5: Solve for x
    x = 45,440,627.95/8,938.17
  6. Step 6: Final answer
    x = 5,083.88

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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.