Home / 19,864.62-27,401.72-11,902.23

Finding the Fourth Proportional to 19,864.62, 27,401.72 and 11,902.23

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Solution

The fourth proportional to 19,864.62, 27,401.72 and 11,902.23 is: 16,418.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.62 : 27,401.72 = 11,902.23 : x
  2. Step 2: Convert to fraction form
    19,864.62/27,401.72 = 11,902.23/x
  3. Step 3: Cross multiply
    19,864.62x = 27,401.72 × 11,902.23
  4. Step 4: Simplify right side
    19,864.62x = 326,141,700.19
  5. Step 5: Solve for x
    x = 326,141,700.19/19,864.62
  6. Step 6: Final answer
    x = 16,418.22

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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.