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Finding the Fourth Proportional to 8,758.92, 13,134.12 and 2,913.54

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Solution

The fourth proportional to 8,758.92, 13,134.12 and 2,913.54 is: 4,368.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.92 : 13,134.12 = 2,913.54 : x
  2. Step 2: Convert to fraction form
    8,758.92/13,134.12 = 2,913.54/x
  3. Step 3: Cross multiply
    8,758.92x = 13,134.12 × 2,913.54
  4. Step 4: Simplify right side
    8,758.92x = 38,266,783.98
  5. Step 5: Solve for x
    x = 38,266,783.98/8,758.92
  6. Step 6: Final answer
    x = 4,368.89

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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.