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Finding the Fourth Proportional to 9,560.84, 13,161.64 and 7,879.58

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Solution

The fourth proportional to 9,560.84, 13,161.64 and 7,879.58 is: 10,847.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,560.84 : 13,161.64 = 7,879.58 : x
  2. Step 2: Convert to fraction form
    9,560.84/13,161.64 = 7,879.58/x
  3. Step 3: Cross multiply
    9,560.84x = 13,161.64 × 7,879.58
  4. Step 4: Simplify right side
    9,560.84x = 103,708,173.93
  5. Step 5: Solve for x
    x = 103,708,173.93/9,560.84
  6. Step 6: Final answer
    x = 10,847.19

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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.