Home / 7,930.20-11,888.61-5,002.05

Finding the Fourth Proportional to 7,930.20, 11,888.61 and 5,002.05

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Solution

The fourth proportional to 7,930.20, 11,888.61 and 5,002.05 is: 7,498.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.20 : 11,888.61 = 5,002.05 : x
  2. Step 2: Convert to fraction form
    7,930.20/11,888.61 = 5,002.05/x
  3. Step 3: Cross multiply
    7,930.20x = 11,888.61 × 5,002.05
  4. Step 4: Simplify right side
    7,930.20x = 59,467,421.65
  5. Step 5: Solve for x
    x = 59,467,421.65/7,930.20
  6. Step 6: Final answer
    x = 7,498.86

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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.