Home / 18,861.18-26,029.11-10,905.90

Finding the Fourth Proportional to 18,861.18, 26,029.11 and 10,905.90

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Solution

The fourth proportional to 18,861.18, 26,029.11 and 10,905.90 is: 15,050.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861.18 : 26,029.11 = 10,905.90 : x
  2. Step 2: Convert to fraction form
    18,861.18/26,029.11 = 10,905.90/x
  3. Step 3: Cross multiply
    18,861.18x = 26,029.11 × 10,905.90
  4. Step 4: Simplify right side
    18,861.18x = 283,870,870.75
  5. Step 5: Solve for x
    x = 283,870,870.75/18,861.18
  6. Step 6: Final answer
    x = 15,050.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.