Home / 7,795.20-11,669.76-4,876.80

Finding the Fourth Proportional to 7,795.20, 11,669.76 and 4,876.80

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Solution

The fourth proportional to 7,795.20, 11,669.76 and 4,876.80 is: 7,300.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,795.20 : 11,669.76 = 4,876.80 : x
  2. Step 2: Convert to fraction form
    7,795.20/11,669.76 = 4,876.80/x
  3. Step 3: Cross multiply
    7,795.20x = 11,669.76 × 4,876.80
  4. Step 4: Simplify right side
    7,795.20x = 56,911,085.57
  5. Step 5: Solve for x
    x = 56,911,085.57/7,795.20
  6. Step 6: Final answer
    x = 7,300.79

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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.