Home / 7,414.32-11,120.64-1,867.66

Finding the Fourth Proportional to 7,414.32, 11,120.64 and 1,867.66

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Solution

The fourth proportional to 7,414.32, 11,120.64 and 1,867.66 is: 2,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,414.32 : 11,120.64 = 1,867.66 : x
  2. Step 2: Convert to fraction form
    7,414.32/11,120.64 = 1,867.66/x
  3. Step 3: Cross multiply
    7,414.32x = 11,120.64 × 1,867.66
  4. Step 4: Simplify right side
    7,414.32x = 20,769,574.50
  5. Step 5: Solve for x
    x = 20,769,574.50/7,414.32
  6. Step 6: Final answer
    x = 2,801.28

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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.