Home / 13,244.42-18,278.28-8,209.64

Finding the Fourth Proportional to 13,244.42, 18,278.28 and 8,209.64

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Solution

The fourth proportional to 13,244.42, 18,278.28 and 8,209.64 is: 11,329.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.42 : 18,278.28 = 8,209.64 : x
  2. Step 2: Convert to fraction form
    13,244.42/18,278.28 = 8,209.64/x
  3. Step 3: Cross multiply
    13,244.42x = 18,278.28 × 8,209.64
  4. Step 4: Simplify right side
    13,244.42x = 150,058,098.62
  5. Step 5: Solve for x
    x = 150,058,098.62/13,244.42
  6. Step 6: Final answer
    x = 11,329.91

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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.