Home / 9,320.75-12,862.64-5,129

Finding the Fourth Proportional to 9,320.75, 12,862.64 and 5,129

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Solution

The fourth proportional to 9,320.75, 12,862.64 and 5,129 is: 7,078.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.75 : 12,862.64 = 5,129 : x
  2. Step 2: Convert to fraction form
    9,320.75/12,862.64 = 5,129/x
  3. Step 3: Cross multiply
    9,320.75x = 12,862.64 × 5,129
  4. Step 4: Simplify right side
    9,320.75x = 65,972,480.56
  5. Step 5: Solve for x
    x = 65,972,480.56/9,320.75
  6. Step 6: Final answer
    x = 7,078.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.