Home / 10,505.80-15,741.69-4,945.96

Finding the Fourth Proportional to 10,505.80, 15,741.69 and 4,945.96

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Solution

The fourth proportional to 10,505.80, 15,741.69 and 4,945.96 is: 7,410.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,505.80 : 15,741.69 = 4,945.96 : x
  2. Step 2: Convert to fraction form
    10,505.80/15,741.69 = 4,945.96/x
  3. Step 3: Cross multiply
    10,505.80x = 15,741.69 × 4,945.96
  4. Step 4: Simplify right side
    10,505.80x = 77,857,769.07
  5. Step 5: Solve for x
    x = 77,857,769.07/10,505.80
  6. Step 6: Final answer
    x = 7,410.93

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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.