Home / 10,504.74-15,755.70-3,109.98

Finding the Fourth Proportional to 10,504.74, 15,755.70 and 3,109.98

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Solution

The fourth proportional to 10,504.74, 15,755.70 and 3,109.98 is: 4,664.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,504.74 : 15,755.70 = 3,109.98 : x
  2. Step 2: Convert to fraction form
    10,504.74/15,755.70 = 3,109.98/x
  3. Step 3: Cross multiply
    10,504.74x = 15,755.70 × 3,109.98
  4. Step 4: Simplify right side
    10,504.74x = 48,999,911.89
  5. Step 5: Solve for x
    x = 48,999,911.89/10,504.74
  6. Step 6: Final answer
    x = 4,664.55

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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.