Home / 7,712.14-11,568.24-1,868.74

Finding the Fourth Proportional to 7,712.14, 11,568.24 and 1,868.74

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Solution

The fourth proportional to 7,712.14, 11,568.24 and 1,868.74 is: 2,803.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.14 : 11,568.24 = 1,868.74 : x
  2. Step 2: Convert to fraction form
    7,712.14/11,568.24 = 1,868.74/x
  3. Step 3: Cross multiply
    7,712.14x = 11,568.24 × 1,868.74
  4. Step 4: Simplify right side
    7,712.14x = 21,618,032.82
  5. Step 5: Solve for x
    x = 21,618,032.82/7,712.14
  6. Step 6: Final answer
    x = 2,803.12

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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.