Home / 11,789.40-17,681.92-4,769.04

Finding the Fourth Proportional to 11,789.40, 17,681.92 and 4,769.04

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Solution

The fourth proportional to 11,789.40, 17,681.92 and 4,769.04 is: 7,152.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,789.40 : 17,681.92 = 4,769.04 : x
  2. Step 2: Convert to fraction form
    11,789.40/17,681.92 = 4,769.04/x
  3. Step 3: Cross multiply
    11,789.40x = 17,681.92 × 4,769.04
  4. Step 4: Simplify right side
    11,789.40x = 84,325,783.76
  5. Step 5: Solve for x
    x = 84,325,783.76/11,789.40
  6. Step 6: Final answer
    x = 7,152.68

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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.