Home / 15,418.20-21,277.22-9,043.49

Finding the Fourth Proportional to 15,418.20, 21,277.22 and 9,043.49

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Solution

The fourth proportional to 15,418.20, 21,277.22 and 9,043.49 is: 12,480.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.20 : 21,277.22 = 9,043.49 : x
  2. Step 2: Convert to fraction form
    15,418.20/21,277.22 = 9,043.49/x
  3. Step 3: Cross multiply
    15,418.20x = 21,277.22 × 9,043.49
  4. Step 4: Simplify right side
    15,418.20x = 192,420,326.30
  5. Step 5: Solve for x
    x = 192,420,326.30/15,418.20
  6. Step 6: Final answer
    x = 12,480.08

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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.