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Finding the Fourth Proportional to 7,199.40, 10,801.08 and 6,111.48

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Solution

The fourth proportional to 7,199.40, 10,801.08 and 6,111.48 is: 9,168.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,199.40 : 10,801.08 = 6,111.48 : x
  2. Step 2: Convert to fraction form
    7,199.40/10,801.08 = 6,111.48/x
  3. Step 3: Cross multiply
    7,199.40x = 10,801.08 × 6,111.48
  4. Step 4: Simplify right side
    7,199.40x = 66,010,584.40
  5. Step 5: Solve for x
    x = 66,010,584.40/7,199.40
  6. Step 6: Final answer
    x = 9,168.90

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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.