Home / 15,769.81-23,669.30-7,984.09

Finding the Fourth Proportional to 15,769.81, 23,669.30 and 7,984.09

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Solution

The fourth proportional to 15,769.81, 23,669.30 and 7,984.09 is: 11,983.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,769.81 : 23,669.30 = 7,984.09 : x
  2. Step 2: Convert to fraction form
    15,769.81/23,669.30 = 7,984.09/x
  3. Step 3: Cross multiply
    15,769.81x = 23,669.30 × 7,984.09
  4. Step 4: Simplify right side
    15,769.81x = 188,977,821.44
  5. Step 5: Solve for x
    x = 188,977,821.44/15,769.81
  6. Step 6: Final answer
    x = 11,983.52

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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.