Home / 12,355.39-18,535.61-3,590.11

Finding the Fourth Proportional to 12,355.39, 18,535.61 and 3,590.11

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Solution

The fourth proportional to 12,355.39, 18,535.61 and 3,590.11 is: 5,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.39 : 18,535.61 = 3,590.11 : x
  2. Step 2: Convert to fraction form
    12,355.39/18,535.61 = 3,590.11/x
  3. Step 3: Cross multiply
    12,355.39x = 18,535.61 × 3,590.11
  4. Step 4: Simplify right side
    12,355.39x = 66,544,860.87
  5. Step 5: Solve for x
    x = 66,544,860.87/12,355.39
  6. Step 6: Final answer
    x = 5,385.90

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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.