Home / 7,973.48-11,960.76-2,778.68

Finding the Fourth Proportional to 7,973.48, 11,960.76 and 2,778.68

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Solution

The fourth proportional to 7,973.48, 11,960.76 and 2,778.68 is: 4,168.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,973.48 : 11,960.76 = 2,778.68 : x
  2. Step 2: Convert to fraction form
    7,973.48/11,960.76 = 2,778.68/x
  3. Step 3: Cross multiply
    7,973.48x = 11,960.76 × 2,778.68
  4. Step 4: Simplify right side
    7,973.48x = 33,235,124.60
  5. Step 5: Solve for x
    x = 33,235,124.60/7,973.48
  6. Step 6: Final answer
    x = 4,168.21

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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.