Home / 11,279.52-16,920.90-3,486.51

Finding the Fourth Proportional to 11,279.52, 16,920.90 and 3,486.51

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Solution

The fourth proportional to 11,279.52, 16,920.90 and 3,486.51 is: 5,230.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.52 : 16,920.90 = 3,486.51 : x
  2. Step 2: Convert to fraction form
    11,279.52/16,920.90 = 3,486.51/x
  3. Step 3: Cross multiply
    11,279.52x = 16,920.90 × 3,486.51
  4. Step 4: Simplify right side
    11,279.52x = 58,994,887.06
  5. Step 5: Solve for x
    x = 58,994,887.06/11,279.52
  6. Step 6: Final answer
    x = 5,230.27

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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.