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Finding the Fourth Proportional to 11,866.16, 17,799.24 and 4,077.20

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Solution

The fourth proportional to 11,866.16, 17,799.24 and 4,077.20 is: 6,115.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,866.16 : 17,799.24 = 4,077.20 : x
  2. Step 2: Convert to fraction form
    11,866.16/17,799.24 = 4,077.20/x
  3. Step 3: Cross multiply
    11,866.16x = 17,799.24 × 4,077.20
  4. Step 4: Simplify right side
    11,866.16x = 72,571,061.33
  5. Step 5: Solve for x
    x = 72,571,061.33/11,866.16
  6. Step 6: Final answer
    x = 6,115.80

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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.