Home / 13,014.82-19,530.26-5,115.95

Finding the Fourth Proportional to 13,014.82, 19,530.26 and 5,115.95

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Solution

The fourth proportional to 13,014.82, 19,530.26 and 5,115.95 is: 7,677.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,014.82 : 19,530.26 = 5,115.95 : x
  2. Step 2: Convert to fraction form
    13,014.82/19,530.26 = 5,115.95/x
  3. Step 3: Cross multiply
    13,014.82x = 19,530.26 × 5,115.95
  4. Step 4: Simplify right side
    13,014.82x = 99,915,839.46
  5. Step 5: Solve for x
    x = 99,915,839.46/13,014.82
  6. Step 6: Final answer
    x = 7,677.08

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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.