Home / 12,110.50-18,171.93-4,999.99

Finding the Fourth Proportional to 12,110.50, 18,171.93 and 4,999.99

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Solution

The fourth proportional to 12,110.50, 18,171.93 and 4,999.99 is: 7,502.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.50 : 18,171.93 = 4,999.99 : x
  2. Step 2: Convert to fraction form
    12,110.50/18,171.93 = 4,999.99/x
  3. Step 3: Cross multiply
    12,110.50x = 18,171.93 × 4,999.99
  4. Step 4: Simplify right side
    12,110.50x = 90,859,468.28
  5. Step 5: Solve for x
    x = 90,859,468.28/12,110.50
  6. Step 6: Final answer
    x = 7,502.54

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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.