Home / 7,876.06-11,791.05-4,777.18

Finding the Fourth Proportional to 7,876.06, 11,791.05 and 4,777.18

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Solution

The fourth proportional to 7,876.06, 11,791.05 and 4,777.18 is: 7,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876.06 : 11,791.05 = 4,777.18 : x
  2. Step 2: Convert to fraction form
    7,876.06/11,791.05 = 4,777.18/x
  3. Step 3: Cross multiply
    7,876.06x = 11,791.05 × 4,777.18
  4. Step 4: Simplify right side
    7,876.06x = 56,327,968.24
  5. Step 5: Solve for x
    x = 56,327,968.24/7,876.06
  6. Step 6: Final answer
    x = 7,151.80

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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.