Home / 7,459.52-11,189.64-5,278

Finding the Fourth Proportional to 7,459.52, 11,189.64 and 5,278

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Solution

The fourth proportional to 7,459.52, 11,189.64 and 5,278 is: 7,917.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,459.52 : 11,189.64 = 5,278 : x
  2. Step 2: Convert to fraction form
    7,459.52/11,189.64 = 5,278/x
  3. Step 3: Cross multiply
    7,459.52x = 11,189.64 × 5,278
  4. Step 4: Simplify right side
    7,459.52x = 59,058,919.92
  5. Step 5: Solve for x
    x = 59,058,919.92/7,459.52
  6. Step 6: Final answer
    x = 7,917.25

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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.