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Finding the Fourth Proportional to 7,866.80, 11,797.48 and 3,487.32

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Solution

The fourth proportional to 7,866.80, 11,797.48 and 3,487.32 is: 5,229.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,866.80 : 11,797.48 = 3,487.32 : x
  2. Step 2: Convert to fraction form
    7,866.80/11,797.48 = 3,487.32/x
  3. Step 3: Cross multiply
    7,866.80x = 11,797.48 × 3,487.32
  4. Step 4: Simplify right side
    7,866.80x = 41,141,587.95
  5. Step 5: Solve for x
    x = 41,141,587.95/7,866.80
  6. Step 6: Final answer
    x = 5,229.77

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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.