Home / 8,938.57-12,334.92-5,401.18

Finding the Fourth Proportional to 8,938.57, 12,334.92 and 5,401.18

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Solution

The fourth proportional to 8,938.57, 12,334.92 and 5,401.18 is: 7,453.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.57 : 12,334.92 = 5,401.18 : x
  2. Step 2: Convert to fraction form
    8,938.57/12,334.92 = 5,401.18/x
  3. Step 3: Cross multiply
    8,938.57x = 12,334.92 × 5,401.18
  4. Step 4: Simplify right side
    8,938.57x = 66,623,123.21
  5. Step 5: Solve for x
    x = 66,623,123.21/8,938.57
  6. Step 6: Final answer
    x = 7,453.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.