Home / 10,499.70-15,751.77-3,479.32

Finding the Fourth Proportional to 10,499.70, 15,751.77 and 3,479.32

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Solution

The fourth proportional to 10,499.70, 15,751.77 and 3,479.32 is: 5,219.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,499.70 : 15,751.77 = 3,479.32 : x
  2. Step 2: Convert to fraction form
    10,499.70/15,751.77 = 3,479.32/x
  3. Step 3: Cross multiply
    10,499.70x = 15,751.77 × 3,479.32
  4. Step 4: Simplify right side
    10,499.70x = 54,805,369.64
  5. Step 5: Solve for x
    x = 54,805,369.64/10,499.70
  6. Step 6: Final answer
    x = 5,219.71

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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.