Home / 10,769.57-16,148.89-4,921.17

Finding the Fourth Proportional to 10,769.57, 16,148.89 and 4,921.17

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Solution

The fourth proportional to 10,769.57, 16,148.89 and 4,921.17 is: 7,379.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,769.57 : 16,148.89 = 4,921.17 : x
  2. Step 2: Convert to fraction form
    10,769.57/16,148.89 = 4,921.17/x
  3. Step 3: Cross multiply
    10,769.57x = 16,148.89 × 4,921.17
  4. Step 4: Simplify right side
    10,769.57x = 79,471,483.27
  5. Step 5: Solve for x
    x = 79,471,483.27/10,769.57
  6. Step 6: Final answer
    x = 7,379.26

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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.