Home / 19,690.08-27,172.98-11,192.55

Finding the Fourth Proportional to 19,690.08, 27,172.98 and 11,192.55

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Solution

The fourth proportional to 19,690.08, 27,172.98 and 11,192.55 is: 15,446.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.08 : 27,172.98 = 11,192.55 : x
  2. Step 2: Convert to fraction form
    19,690.08/27,172.98 = 11,192.55/x
  3. Step 3: Cross multiply
    19,690.08x = 27,172.98 × 11,192.55
  4. Step 4: Simplify right side
    19,690.08x = 304,135,005.23
  5. Step 5: Solve for x
    x = 304,135,005.23/19,690.08
  6. Step 6: Final answer
    x = 15,446.11

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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.