Home / 18,669.90-28,001.82-7,576.14

Finding the Fourth Proportional to 18,669.90, 28,001.82 and 7,576.14

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Solution

The fourth proportional to 18,669.90, 28,001.82 and 7,576.14 is: 11,362.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,669.90 : 28,001.82 = 7,576.14 : x
  2. Step 2: Convert to fraction form
    18,669.90/28,001.82 = 7,576.14/x
  3. Step 3: Cross multiply
    18,669.90x = 28,001.82 × 7,576.14
  4. Step 4: Simplify right side
    18,669.90x = 212,145,708.57
  5. Step 5: Solve for x
    x = 212,145,708.57/18,669.90
  6. Step 6: Final answer
    x = 11,362.98

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1.5x scale

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.