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Finding the Fourth Proportional to 7,539.54, 10,395 and 5,388.66

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Solution

The fourth proportional to 7,539.54, 10,395 and 5,388.66 is: 7,429.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,539.54 : 10,395 = 5,388.66 : x
  2. Step 2: Convert to fraction form
    7,539.54/10,395 = 5,388.66/x
  3. Step 3: Cross multiply
    7,539.54x = 10,395 × 5,388.66
  4. Step 4: Simplify right side
    7,539.54x = 56,015,120.70
  5. Step 5: Solve for x
    x = 56,015,120.70/7,539.54
  6. Step 6: Final answer
    x = 7,429.51

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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.