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Finding the Fourth Proportional to 8,889.16, 13,322.54 and 4,507.72

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Solution

The fourth proportional to 8,889.16, 13,322.54 and 4,507.72 is: 6,755.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.16 : 13,322.54 = 4,507.72 : x
  2. Step 2: Convert to fraction form
    8,889.16/13,322.54 = 4,507.72/x
  3. Step 3: Cross multiply
    8,889.16x = 13,322.54 × 4,507.72
  4. Step 4: Simplify right side
    8,889.16x = 60,054,280.01
  5. Step 5: Solve for x
    x = 60,054,280.01/8,889.16
  6. Step 6: Final answer
    x = 6,755.90

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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.