Home / 9,268.11-12,789.93-5,289

Finding the Fourth Proportional to 9,268.11, 12,789.93 and 5,289

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Solution

The fourth proportional to 9,268.11, 12,789.93 and 5,289 is: 7,298.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,268.11 : 12,789.93 = 5,289 : x
  2. Step 2: Convert to fraction form
    9,268.11/12,789.93 = 5,289/x
  3. Step 3: Cross multiply
    9,268.11x = 12,789.93 × 5,289
  4. Step 4: Simplify right side
    9,268.11x = 67,645,939.77
  5. Step 5: Solve for x
    x = 67,645,939.77/9,268.11
  6. Step 6: Final answer
    x = 7,298.78

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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.