Home / 10,705.10-16,052.85-4,129.10

Finding the Fourth Proportional to 10,705.10, 16,052.85 and 4,129.10

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Solution

The fourth proportional to 10,705.10, 16,052.85 and 4,129.10 is: 6,191.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,705.10 : 16,052.85 = 4,129.10 : x
  2. Step 2: Convert to fraction form
    10,705.10/16,052.85 = 4,129.10/x
  3. Step 3: Cross multiply
    10,705.10x = 16,052.85 × 4,129.10
  4. Step 4: Simplify right side
    10,705.10x = 66,283,822.94
  5. Step 5: Solve for x
    x = 66,283,822.94/10,705.10
  6. Step 6: Final answer
    x = 6,191.80

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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.