Home / 10,991.48-16,487.99-4,417.66

Finding the Fourth Proportional to 10,991.48, 16,487.99 and 4,417.66

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Solution

The fourth proportional to 10,991.48, 16,487.99 and 4,417.66 is: 6,626.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.48 : 16,487.99 = 4,417.66 : x
  2. Step 2: Convert to fraction form
    10,991.48/16,487.99 = 4,417.66/x
  3. Step 3: Cross multiply
    10,991.48x = 16,487.99 × 4,417.66
  4. Step 4: Simplify right side
    10,991.48x = 72,838,414.00
  5. Step 5: Solve for x
    x = 72,838,414.00/10,991.48
  6. Step 6: Final answer
    x = 6,626.80

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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.