Home / 12,633.14-18,941.60-5,242.70

Finding the Fourth Proportional to 12,633.14, 18,941.60 and 5,242.70

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Solution

The fourth proportional to 12,633.14, 18,941.60 and 5,242.70 is: 7,860.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,633.14 : 18,941.60 = 5,242.70 : x
  2. Step 2: Convert to fraction form
    12,633.14/18,941.60 = 5,242.70/x
  3. Step 3: Cross multiply
    12,633.14x = 18,941.60 × 5,242.70
  4. Step 4: Simplify right side
    12,633.14x = 99,305,126.32
  5. Step 5: Solve for x
    x = 99,305,126.32/12,633.14
  6. Step 6: Final answer
    x = 7,860.68

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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.