Home / 10,681.92-16,021.80-2,891.52

Finding the Fourth Proportional to 10,681.92, 16,021.80 and 2,891.52

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Solution

The fourth proportional to 10,681.92, 16,021.80 and 2,891.52 is: 4,336.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,681.92 : 16,021.80 = 2,891.52 : x
  2. Step 2: Convert to fraction form
    10,681.92/16,021.80 = 2,891.52/x
  3. Step 3: Cross multiply
    10,681.92x = 16,021.80 × 2,891.52
  4. Step 4: Simplify right side
    10,681.92x = 46,327,355.14
  5. Step 5: Solve for x
    x = 46,327,355.14/10,681.92
  6. Step 6: Final answer
    x = 4,336.99

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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.