Home / 7,760.88-11,581.70-6,930.48

Finding the Fourth Proportional to 7,760.88, 11,581.70 and 6,930.48

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Solution

The fourth proportional to 7,760.88, 11,581.70 and 6,930.48 is: 10,342.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,760.88 : 11,581.70 = 6,930.48 : x
  2. Step 2: Convert to fraction form
    7,760.88/11,581.70 = 6,930.48/x
  3. Step 3: Cross multiply
    7,760.88x = 11,581.70 × 6,930.48
  4. Step 4: Simplify right side
    7,760.88x = 80,266,740.22
  5. Step 5: Solve for x
    x = 80,266,740.22/7,760.88
  6. Step 6: Final answer
    x = 10,342.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.