Home / 13,826.04-20,743.20-6,434.88

Finding the Fourth Proportional to 13,826.04, 20,743.20 and 6,434.88

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Solution

The fourth proportional to 13,826.04, 20,743.20 and 6,434.88 is: 9,654.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.04 : 20,743.20 = 6,434.88 : x
  2. Step 2: Convert to fraction form
    13,826.04/20,743.20 = 6,434.88/x
  3. Step 3: Cross multiply
    13,826.04x = 20,743.20 × 6,434.88
  4. Step 4: Simplify right side
    13,826.04x = 133,480,002.82
  5. Step 5: Solve for x
    x = 133,480,002.82/13,826.04
  6. Step 6: Final answer
    x = 9,654.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.