Home / 7,986.64-11,966.16-7,175.02

Finding the Fourth Proportional to 7,986.64, 11,966.16 and 7,175.02

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Solution

The fourth proportional to 7,986.64, 11,966.16 and 7,175.02 is: 10,750.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.64 : 11,966.16 = 7,175.02 : x
  2. Step 2: Convert to fraction form
    7,986.64/11,966.16 = 7,175.02/x
  3. Step 3: Cross multiply
    7,986.64x = 11,966.16 × 7,175.02
  4. Step 4: Simplify right side
    7,986.64x = 85,857,437.32
  5. Step 5: Solve for x
    x = 85,857,437.32/7,986.64
  6. Step 6: Final answer
    x = 10,750.13

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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.