Home / 11,249.97-15,525.18-7,278.02

Finding the Fourth Proportional to 11,249.97, 15,525.18 and 7,278.02

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Solution

The fourth proportional to 11,249.97, 15,525.18 and 7,278.02 is: 10,043.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,249.97 : 15,525.18 = 7,278.02 : x
  2. Step 2: Convert to fraction form
    11,249.97/15,525.18 = 7,278.02/x
  3. Step 3: Cross multiply
    11,249.97x = 15,525.18 × 7,278.02
  4. Step 4: Simplify right side
    11,249.97x = 112,992,492.92
  5. Step 5: Solve for x
    x = 112,992,492.92/11,249.97
  6. Step 6: Final answer
    x = 10,043.80

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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.