Home / 13,127.29-19,692.16-5,227.90

Finding the Fourth Proportional to 13,127.29, 19,692.16 and 5,227.90

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Solution

The fourth proportional to 13,127.29, 19,692.16 and 5,227.90 is: 7,842.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.29 : 19,692.16 = 5,227.90 : x
  2. Step 2: Convert to fraction form
    13,127.29/19,692.16 = 5,227.90/x
  3. Step 3: Cross multiply
    13,127.29x = 19,692.16 × 5,227.90
  4. Step 4: Simplify right side
    13,127.29x = 102,948,580.96
  5. Step 5: Solve for x
    x = 102,948,580.96/13,127.29
  6. Step 6: Final answer
    x = 7,842.33

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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.