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Finding the Fourth Proportional to 11,339.68, 15,662.64 and 8,350.96

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Solution

The fourth proportional to 11,339.68, 15,662.64 and 8,350.96 is: 11,534.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.68 : 15,662.64 = 8,350.96 : x
  2. Step 2: Convert to fraction form
    11,339.68/15,662.64 = 8,350.96/x
  3. Step 3: Cross multiply
    11,339.68x = 15,662.64 × 8,350.96
  4. Step 4: Simplify right side
    11,339.68x = 130,798,080.13
  5. Step 5: Solve for x
    x = 130,798,080.13/11,339.68
  6. Step 6: Final answer
    x = 11,534.55

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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.