Home / 11,079.75-15,281.41-7,101.24

Finding the Fourth Proportional to 11,079.75, 15,281.41 and 7,101.24

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Solution

The fourth proportional to 11,079.75, 15,281.41 and 7,101.24 is: 9,794.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.75 : 15,281.41 = 7,101.24 : x
  2. Step 2: Convert to fraction form
    11,079.75/15,281.41 = 7,101.24/x
  3. Step 3: Cross multiply
    11,079.75x = 15,281.41 × 7,101.24
  4. Step 4: Simplify right side
    11,079.75x = 108,516,942.20
  5. Step 5: Solve for x
    x = 108,516,942.20/11,079.75
  6. Step 6: Final answer
    x = 9,794.17

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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.