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Finding the Fourth Proportional to 6,600.56, 9,109.32 and 5,418.32

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Solution

The fourth proportional to 6,600.56, 9,109.32 and 5,418.32 is: 7,477.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,600.56 : 9,109.32 = 5,418.32 : x
  2. Step 2: Convert to fraction form
    6,600.56/9,109.32 = 5,418.32/x
  3. Step 3: Cross multiply
    6,600.56x = 9,109.32 × 5,418.32
  4. Step 4: Simplify right side
    6,600.56x = 49,357,210.74
  5. Step 5: Solve for x
    x = 49,357,210.74/6,600.56
  6. Step 6: Final answer
    x = 7,477.73

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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.