Home / 19,689.70-27,172.46-11,192.18

Finding the Fourth Proportional to 19,689.70, 27,172.46 and 11,192.18

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Solution

The fourth proportional to 19,689.70, 27,172.46 and 11,192.18 is: 15,445.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.70 : 27,172.46 = 11,192.18 : x
  2. Step 2: Convert to fraction form
    19,689.70/27,172.46 = 11,192.18/x
  3. Step 3: Cross multiply
    19,689.70x = 27,172.46 × 11,192.18
  4. Step 4: Simplify right side
    19,689.70x = 304,119,063.36
  5. Step 5: Solve for x
    x = 304,119,063.36/19,689.70
  6. Step 6: Final answer
    x = 15,445.59

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1.5x scale

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.