Home / 8,938.19-12,334.92-4,905.19

Finding the Fourth Proportional to 8,938.19, 12,334.92 and 4,905.19

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Solution

The fourth proportional to 8,938.19, 12,334.92 and 4,905.19 is: 6,769.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.19 : 12,334.92 = 4,905.19 : x
  2. Step 2: Convert to fraction form
    8,938.19/12,334.92 = 4,905.19/x
  3. Step 3: Cross multiply
    8,938.19x = 12,334.92 × 4,905.19
  4. Step 4: Simplify right side
    8,938.19x = 60,505,064.56
  5. Step 5: Solve for x
    x = 60,505,064.56/8,938.19
  6. Step 6: Final answer
    x = 6,769.28

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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.