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Finding the Fourth Proportional to 8,734.94, 13,119.15 and 7,488.35

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Solution

The fourth proportional to 8,734.94, 13,119.15 and 7,488.35 is: 11,246.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,734.94 : 13,119.15 = 7,488.35 : x
  2. Step 2: Convert to fraction form
    8,734.94/13,119.15 = 7,488.35/x
  3. Step 3: Cross multiply
    8,734.94x = 13,119.15 × 7,488.35
  4. Step 4: Simplify right side
    8,734.94x = 98,240,786.90
  5. Step 5: Solve for x
    x = 98,240,786.90/8,734.94
  6. Step 6: Final answer
    x = 11,246.88

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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.