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Finding the Fourth Proportional to 11,125, 15,350.04 and 6,648.08

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Solution

The fourth proportional to 11,125, 15,350.04 and 6,648.08 is: 9,172.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125 : 15,350.04 = 6,648.08 : x
  2. Step 2: Convert to fraction form
    11,125/15,350.04 = 6,648.08/x
  3. Step 3: Cross multiply
    11,125x = 15,350.04 × 6,648.08
  4. Step 4: Simplify right side
    11,125x = 102,048,293.92
  5. Step 5: Solve for x
    x = 102,048,293.92/11,125
  6. Step 6: Final answer
    x = 9,172.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.