Home / 8,912.09-13,360.62-5,617.92

Finding the Fourth Proportional to 8,912.09, 13,360.62 and 5,617.92

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Solution

The fourth proportional to 8,912.09, 13,360.62 and 5,617.92 is: 8,422.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.09 : 13,360.62 = 5,617.92 : x
  2. Step 2: Convert to fraction form
    8,912.09/13,360.62 = 5,617.92/x
  3. Step 3: Cross multiply
    8,912.09x = 13,360.62 × 5,617.92
  4. Step 4: Simplify right side
    8,912.09x = 75,058,894.31
  5. Step 5: Solve for x
    x = 75,058,894.31/8,912.09
  6. Step 6: Final answer
    x = 8,422.14

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1.5x scale

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.