Home / 12,904.11-19,350.50-6,667.65

Finding the Fourth Proportional to 12,904.11, 19,350.50 and 6,667.65

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Solution

The fourth proportional to 12,904.11, 19,350.50 and 6,667.65 is: 9,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.11 : 19,350.50 = 6,667.65 : x
  2. Step 2: Convert to fraction form
    12,904.11/19,350.50 = 6,667.65/x
  3. Step 3: Cross multiply
    12,904.11x = 19,350.50 × 6,667.65
  4. Step 4: Simplify right side
    12,904.11x = 129,022,327.99
  5. Step 5: Solve for x
    x = 129,022,327.99/12,904.11
  6. Step 6: Final answer
    x = 9,998.55

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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.