Home / 12,506.90-18,735.18-5,939.42

Finding the Fourth Proportional to 12,506.90, 18,735.18 and 5,939.42

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Solution

The fourth proportional to 12,506.90, 18,735.18 and 5,939.42 is: 8,897.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,506.90 : 18,735.18 = 5,939.42 : x
  2. Step 2: Convert to fraction form
    12,506.90/18,735.18 = 5,939.42/x
  3. Step 3: Cross multiply
    12,506.90x = 18,735.18 × 5,939.42
  4. Step 4: Simplify right side
    12,506.90x = 111,276,102.80
  5. Step 5: Solve for x
    x = 111,276,102.80/12,506.90
  6. Step 6: Final answer
    x = 8,897.18

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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.