Home / 19,690.56-27,172.08-11,193.84

Finding the Fourth Proportional to 19,690.56, 27,172.08 and 11,193.84

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Solution

The fourth proportional to 19,690.56, 27,172.08 and 11,193.84 is: 15,446.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.56 : 27,172.08 = 11,193.84 : x
  2. Step 2: Convert to fraction form
    19,690.56/27,172.08 = 11,193.84/x
  3. Step 3: Cross multiply
    19,690.56x = 27,172.08 × 11,193.84
  4. Step 4: Simplify right side
    19,690.56x = 304,159,915.99
  5. Step 5: Solve for x
    x = 304,159,915.99/19,690.56
  6. Step 6: Final answer
    x = 15,446.99

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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.