Home / 12,904.11-19,355.76-7,097.22

Finding the Fourth Proportional to 12,904.11, 19,355.76 and 7,097.22

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Solution

The fourth proportional to 12,904.11, 19,355.76 and 7,097.22 is: 10,645.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.11 : 19,355.76 = 7,097.22 : x
  2. Step 2: Convert to fraction form
    12,904.11/19,355.76 = 7,097.22/x
  3. Step 3: Cross multiply
    12,904.11x = 19,355.76 × 7,097.22
  4. Step 4: Simplify right side
    12,904.11x = 137,372,086.99
  5. Step 5: Solve for x
    x = 137,372,086.99/12,904.11
  6. Step 6: Final answer
    x = 10,645.61

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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.