Home / 10,709.61-16,064.42-2,919.57

Finding the Fourth Proportional to 10,709.61, 16,064.42 and 2,919.57

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Solution

The fourth proportional to 10,709.61, 16,064.42 and 2,919.57 is: 4,379.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,709.61 : 16,064.42 = 2,919.57 : x
  2. Step 2: Convert to fraction form
    10,709.61/16,064.42 = 2,919.57/x
  3. Step 3: Cross multiply
    10,709.61x = 16,064.42 × 2,919.57
  4. Step 4: Simplify right side
    10,709.61x = 46,901,184.10
  5. Step 5: Solve for x
    x = 46,901,184.10/10,709.61
  6. Step 6: Final answer
    x = 4,379.36

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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.