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Finding the Fourth Proportional to 7,558.56, 11,341.92 and 5,721.12

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Solution

The fourth proportional to 7,558.56, 11,341.92 and 5,721.12 is: 8,584.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,558.56 : 11,341.92 = 5,721.12 : x
  2. Step 2: Convert to fraction form
    7,558.56/11,341.92 = 5,721.12/x
  3. Step 3: Cross multiply
    7,558.56x = 11,341.92 × 5,721.12
  4. Step 4: Simplify right side
    7,558.56x = 64,888,485.35
  5. Step 5: Solve for x
    x = 64,888,485.35/7,558.56
  6. Step 6: Final answer
    x = 8,584.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.