Home / 8,809.25-12,159.05-5,450.11

Finding the Fourth Proportional to 8,809.25, 12,159.05 and 5,450.11

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Solution

The fourth proportional to 8,809.25, 12,159.05 and 5,450.11 is: 7,522.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.25 : 12,159.05 = 5,450.11 : x
  2. Step 2: Convert to fraction form
    8,809.25/12,159.05 = 5,450.11/x
  3. Step 3: Cross multiply
    8,809.25x = 12,159.05 × 5,450.11
  4. Step 4: Simplify right side
    8,809.25x = 66,268,102.35
  5. Step 5: Solve for x
    x = 66,268,102.35/8,809.25
  6. Step 6: Final answer
    x = 7,522.56

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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.