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Finding the Fourth Proportional to 7,765.91, 11,573.93 and 7,753.56

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Solution

The fourth proportional to 7,765.91, 11,573.93 and 7,753.56 is: 11,555.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.91 : 11,573.93 = 7,753.56 : x
  2. Step 2: Convert to fraction form
    7,765.91/11,573.93 = 7,753.56/x
  3. Step 3: Cross multiply
    7,765.91x = 11,573.93 × 7,753.56
  4. Step 4: Simplify right side
    7,765.91x = 89,739,114.87
  5. Step 5: Solve for x
    x = 89,739,114.87/7,765.91
  6. Step 6: Final answer
    x = 11,555.52

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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.