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Finding the Fourth Proportional to 8,898.78, 13,340.78 and 3,349.07

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Solution

The fourth proportional to 8,898.78, 13,340.78 and 3,349.07 is: 5,020.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,898.78 : 13,340.78 = 3,349.07 : x
  2. Step 2: Convert to fraction form
    8,898.78/13,340.78 = 3,349.07/x
  3. Step 3: Cross multiply
    8,898.78x = 13,340.78 × 3,349.07
  4. Step 4: Simplify right side
    8,898.78x = 44,679,206.07
  5. Step 5: Solve for x
    x = 44,679,206.07/8,898.78
  6. Step 6: Final answer
    x = 5,020.82

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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.