Home / 19,691.34-27,172.98-11,307.84

Finding the Fourth Proportional to 19,691.34, 27,172.98 and 11,307.84

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Solution

The fourth proportional to 19,691.34, 27,172.98 and 11,307.84 is: 15,604.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,691.34 : 27,172.98 = 11,307.84 : x
  2. Step 2: Convert to fraction form
    19,691.34/27,172.98 = 11,307.84/x
  3. Step 3: Cross multiply
    19,691.34x = 27,172.98 × 11,307.84
  4. Step 4: Simplify right side
    19,691.34x = 307,267,710.16
  5. Step 5: Solve for x
    x = 307,267,710.16/19,691.34
  6. Step 6: Final answer
    x = 15,604.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.