Home / 7,659.12-11,488.66-2,112.28

Finding the Fourth Proportional to 7,659.12, 11,488.66 and 2,112.28

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Solution

The fourth proportional to 7,659.12, 11,488.66 and 2,112.28 is: 3,168.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,659.12 : 11,488.66 = 2,112.28 : x
  2. Step 2: Convert to fraction form
    7,659.12/11,488.66 = 2,112.28/x
  3. Step 3: Cross multiply
    7,659.12x = 11,488.66 × 2,112.28
  4. Step 4: Simplify right side
    7,659.12x = 24,267,266.74
  5. Step 5: Solve for x
    x = 24,267,266.74/7,659.12
  6. Step 6: Final answer
    x = 3,168.41

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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.