Home / 19,769.43-27,272.40-12,213.05

Finding the Fourth Proportional to 19,769.43, 27,272.40 and 12,213.05

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Solution

The fourth proportional to 19,769.43, 27,272.40 and 12,213.05 is: 16,848.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,769.43 : 27,272.40 = 12,213.05 : x
  2. Step 2: Convert to fraction form
    19,769.43/27,272.40 = 12,213.05/x
  3. Step 3: Cross multiply
    19,769.43x = 27,272.40 × 12,213.05
  4. Step 4: Simplify right side
    19,769.43x = 333,079,002.66
  5. Step 5: Solve for x
    x = 333,079,002.66/19,769.43
  6. Step 6: Final answer
    x = 16,848.18

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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.