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Finding the Fourth Proportional to 8,992.31, 12,343.37 and 7,975.36

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Solution

The fourth proportional to 8,992.31, 12,343.37 and 7,975.36 is: 10,947.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.31 : 12,343.37 = 7,975.36 : x
  2. Step 2: Convert to fraction form
    8,992.31/12,343.37 = 7,975.36/x
  3. Step 3: Cross multiply
    8,992.31x = 12,343.37 × 7,975.36
  4. Step 4: Simplify right side
    8,992.31x = 98,442,717.77
  5. Step 5: Solve for x
    x = 98,442,717.77/8,992.31
  6. Step 6: Final answer
    x = 10,947.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.