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Finding the Fourth Proportional to 8,889, 13,333.56 and 3,045.66

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Solution

The fourth proportional to 8,889, 13,333.56 and 3,045.66 is: 4,568.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889 : 13,333.56 = 3,045.66 : x
  2. Step 2: Convert to fraction form
    8,889/13,333.56 = 3,045.66/x
  3. Step 3: Cross multiply
    8,889x = 13,333.56 × 3,045.66
  4. Step 4: Simplify right side
    8,889x = 40,609,490.35
  5. Step 5: Solve for x
    x = 40,609,490.35/8,889
  6. Step 6: Final answer
    x = 4,568.51

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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.