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Finding the Fourth Proportional to 8,986.92, 13,482.99 and 3,720.96

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Solution

The fourth proportional to 8,986.92, 13,482.99 and 3,720.96 is: 5,582.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.92 : 13,482.99 = 3,720.96 : x
  2. Step 2: Convert to fraction form
    8,986.92/13,482.99 = 3,720.96/x
  3. Step 3: Cross multiply
    8,986.92x = 13,482.99 × 3,720.96
  4. Step 4: Simplify right side
    8,986.92x = 50,169,666.47
  5. Step 5: Solve for x
    x = 50,169,666.47/8,986.92
  6. Step 6: Final answer
    x = 5,582.52

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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.