Home / 15,454.14-21,334.98-12,089.82

Finding the Fourth Proportional to 15,454.14, 21,334.98 and 12,089.82

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Solution

The fourth proportional to 15,454.14, 21,334.98 and 12,089.82 is: 16,690.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.14 : 21,334.98 = 12,089.82 : x
  2. Step 2: Convert to fraction form
    15,454.14/21,334.98 = 12,089.82/x
  3. Step 3: Cross multiply
    15,454.14x = 21,334.98 × 12,089.82
  4. Step 4: Simplify right side
    15,454.14x = 257,936,067.90
  5. Step 5: Solve for x
    x = 257,936,067.90/15,454.14
  6. Step 6: Final answer
    x = 16,690.42

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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.