Home / 7,954.09-11,931.17-2,689.14

Finding the Fourth Proportional to 7,954.09, 11,931.17 and 2,689.14

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Solution

The fourth proportional to 7,954.09, 11,931.17 and 2,689.14 is: 4,033.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.09 : 11,931.17 = 2,689.14 : x
  2. Step 2: Convert to fraction form
    7,954.09/11,931.17 = 2,689.14/x
  3. Step 3: Cross multiply
    7,954.09x = 11,931.17 × 2,689.14
  4. Step 4: Simplify right side
    7,954.09x = 32,084,573.05
  5. Step 5: Solve for x
    x = 32,084,573.05/7,954.09
  6. Step 6: Final answer
    x = 4,033.72

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1.5x scale

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.