Home / 10,186.98-15,281.39-2,791.49

Finding the Fourth Proportional to 10,186.98, 15,281.39 and 2,791.49

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Solution

The fourth proportional to 10,186.98, 15,281.39 and 2,791.49 is: 4,187.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,186.98 : 15,281.39 = 2,791.49 : x
  2. Step 2: Convert to fraction form
    10,186.98/15,281.39 = 2,791.49/x
  3. Step 3: Cross multiply
    10,186.98x = 15,281.39 × 2,791.49
  4. Step 4: Simplify right side
    10,186.98x = 42,657,757.01
  5. Step 5: Solve for x
    x = 42,657,757.01/10,186.98
  6. Step 6: Final answer
    x = 4,187.48

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1.5x scale

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.