Home / 12,441.11-18,667.62-7,759.91

Finding the Fourth Proportional to 12,441.11, 18,667.62 and 7,759.91

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Solution

The fourth proportional to 12,441.11, 18,667.62 and 7,759.91 is: 11,643.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,441.11 : 18,667.62 = 7,759.91 : x
  2. Step 2: Convert to fraction form
    12,441.11/18,667.62 = 7,759.91/x
  3. Step 3: Cross multiply
    12,441.11x = 18,667.62 × 7,759.91
  4. Step 4: Simplify right side
    12,441.11x = 144,859,051.11
  5. Step 5: Solve for x
    x = 144,859,051.11/12,441.11
  6. Step 6: Final answer
    x = 11,643.58

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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.