Home / 11,104.84-15,310.74-7,118.92

Finding the Fourth Proportional to 11,104.84, 15,310.74 and 7,118.92

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Solution

The fourth proportional to 11,104.84, 15,310.74 and 7,118.92 is: 9,815.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,104.84 : 15,310.74 = 7,118.92 : x
  2. Step 2: Convert to fraction form
    11,104.84/15,310.74 = 7,118.92/x
  3. Step 3: Cross multiply
    11,104.84x = 15,310.74 × 7,118.92
  4. Step 4: Simplify right side
    11,104.84x = 108,995,933.20
  5. Step 5: Solve for x
    x = 108,995,933.20/11,104.84
  6. Step 6: Final answer
    x = 9,815.17

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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.