Home / 19,865.96-27,407.18-12,796.49

Finding the Fourth Proportional to 19,865.96, 27,407.18 and 12,796.49

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Solution

The fourth proportional to 19,865.96, 27,407.18 and 12,796.49 is: 17,654.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.96 : 27,407.18 = 12,796.49 : x
  2. Step 2: Convert to fraction form
    19,865.96/27,407.18 = 12,796.49/x
  3. Step 3: Cross multiply
    19,865.96x = 27,407.18 × 12,796.49
  4. Step 4: Simplify right side
    19,865.96x = 350,715,503.78
  5. Step 5: Solve for x
    x = 350,715,503.78/19,865.96
  6. Step 6: Final answer
    x = 17,654.10

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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.