Home / 7,974.65-11,952.56-4,689.90

Finding the Fourth Proportional to 7,974.65, 11,952.56 and 4,689.90

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Solution

The fourth proportional to 7,974.65, 11,952.56 and 4,689.90 is: 7,029.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.65 : 11,952.56 = 4,689.90 : x
  2. Step 2: Convert to fraction form
    7,974.65/11,952.56 = 4,689.90/x
  3. Step 3: Cross multiply
    7,974.65x = 11,952.56 × 4,689.90
  4. Step 4: Simplify right side
    7,974.65x = 56,056,322.87
  5. Step 5: Solve for x
    x = 56,056,322.87/7,974.65
  6. Step 6: Final answer
    x = 7,029.31

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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.