Home / 11,120.19-16,691.69-7,448.06

Finding the Fourth Proportional to 11,120.19, 16,691.69 and 7,448.06

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Solution

The fourth proportional to 11,120.19, 16,691.69 and 7,448.06 is: 11,179.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.19 : 16,691.69 = 7,448.06 : x
  2. Step 2: Convert to fraction form
    11,120.19/16,691.69 = 7,448.06/x
  3. Step 3: Cross multiply
    11,120.19x = 16,691.69 × 7,448.06
  4. Step 4: Simplify right side
    11,120.19x = 124,320,587.92
  5. Step 5: Solve for x
    x = 124,320,587.92/11,120.19
  6. Step 6: Final answer
    x = 11,179.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.