Home / 13,726,819.80-18,935,141.04-8,561,213.28

Finding the Fourth Proportional to 13,726,819.80, 18,935,141.04 and 8,561,213.28

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Solution

The fourth proportional to 13,726,819.80, 18,935,141.04 and 8,561,213.28 is: 11,809,565.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,726,819.80 : 18,935,141.04 = 8,561,213.28 : x
  2. Step 2: Convert to fraction form
    13,726,819.80/18,935,141.04 = 8,561,213.28/x
  3. Step 3: Cross multiply
    13,726,819.80x = 18,935,141.04 × 8,561,213.28
  4. Step 4: Simplify right side
    13,726,819.80x = 162,107,780,930,321
  5. Step 5: Solve for x
    x = 162,107,780,930,321/13,726,819.80
  6. Step 6: Final answer
    x = 11,809,565.75

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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.