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Finding the Fourth Proportional to 8,889.20, 13,335 and 3,047.44

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Solution

The fourth proportional to 8,889.20, 13,335 and 3,047.44 is: 4,571.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.20 : 13,335 = 3,047.44 : x
  2. Step 2: Convert to fraction form
    8,889.20/13,335 = 3,047.44/x
  3. Step 3: Cross multiply
    8,889.20x = 13,335 × 3,047.44
  4. Step 4: Simplify right side
    8,889.20x = 40,637,612.40
  5. Step 5: Solve for x
    x = 40,637,612.40/8,889.20
  6. Step 6: Final answer
    x = 4,571.57

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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.