Home / 11,605.57-17,407.81-2,840.02

Finding the Fourth Proportional to 11,605.57, 17,407.81 and 2,840.02

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Solution

The fourth proportional to 11,605.57, 17,407.81 and 2,840.02 is: 4,259.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,605.57 : 17,407.81 = 2,840.02 : x
  2. Step 2: Convert to fraction form
    11,605.57/17,407.81 = 2,840.02/x
  3. Step 3: Cross multiply
    11,605.57x = 17,407.81 × 2,840.02
  4. Step 4: Simplify right side
    11,605.57x = 49,438,528.56
  5. Step 5: Solve for x
    x = 49,438,528.56/11,605.57
  6. Step 6: Final answer
    x = 4,259.90

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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.