Home / 10,188.59-15,280.09-2,791.31

Finding the Fourth Proportional to 10,188.59, 15,280.09 and 2,791.31

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Solution

The fourth proportional to 10,188.59, 15,280.09 and 2,791.31 is: 4,186.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,188.59 : 15,280.09 = 2,791.31 : x
  2. Step 2: Convert to fraction form
    10,188.59/15,280.09 = 2,791.31/x
  3. Step 3: Cross multiply
    10,188.59x = 15,280.09 × 2,791.31
  4. Step 4: Simplify right side
    10,188.59x = 42,651,384.64
  5. Step 5: Solve for x
    x = 42,651,384.64/10,188.59
  6. Step 6: Final answer
    x = 4,186.19

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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.