Home / 7,799.36-11,703-3,416.84

Finding the Fourth Proportional to 7,799.36, 11,703 and 3,416.84

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Solution

The fourth proportional to 7,799.36, 11,703 and 3,416.84 is: 5,126.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,799.36 : 11,703 = 3,416.84 : x
  2. Step 2: Convert to fraction form
    7,799.36/11,703 = 3,416.84/x
  3. Step 3: Cross multiply
    7,799.36x = 11,703 × 3,416.84
  4. Step 4: Simplify right side
    7,799.36x = 39,987,278.52
  5. Step 5: Solve for x
    x = 39,987,278.52/7,799.36
  6. Step 6: Final answer
    x = 5,126.99

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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.