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Finding the Fourth Proportional to 9,135.93, 12,608.65 and 7,600.15

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Solution

The fourth proportional to 9,135.93, 12,608.65 and 7,600.15 is: 10,489.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.93 : 12,608.65 = 7,600.15 : x
  2. Step 2: Convert to fraction form
    9,135.93/12,608.65 = 7,600.15/x
  3. Step 3: Cross multiply
    9,135.93x = 12,608.65 × 7,600.15
  4. Step 4: Simplify right side
    9,135.93x = 95,827,568.25
  5. Step 5: Solve for x
    x = 95,827,568.25/9,135.93
  6. Step 6: Final answer
    x = 10,489.09

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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.