Home / 7,881.20-10,876.56-4,344.80

Finding the Fourth Proportional to 7,881.20, 10,876.56 and 4,344.80

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Solution

The fourth proportional to 7,881.20, 10,876.56 and 4,344.80 is: 5,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.20 : 10,876.56 = 4,344.80 : x
  2. Step 2: Convert to fraction form
    7,881.20/10,876.56 = 4,344.80/x
  3. Step 3: Cross multiply
    7,881.20x = 10,876.56 × 4,344.80
  4. Step 4: Simplify right side
    7,881.20x = 47,256,477.89
  5. Step 5: Solve for x
    x = 47,256,477.89/7,881.20
  6. Step 6: Final answer
    x = 5,996.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.