Home / 12,447.87-18,671.43-5,052.15

Finding the Fourth Proportional to 12,447.87, 18,671.43 and 5,052.15

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Solution

The fourth proportional to 12,447.87, 18,671.43 and 5,052.15 is: 7,578.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.87 : 18,671.43 = 5,052.15 : x
  2. Step 2: Convert to fraction form
    12,447.87/18,671.43 = 5,052.15/x
  3. Step 3: Cross multiply
    12,447.87x = 18,671.43 × 5,052.15
  4. Step 4: Simplify right side
    12,447.87x = 94,330,865.07
  5. Step 5: Solve for x
    x = 94,330,865.07/12,447.87
  6. Step 6: Final answer
    x = 7,578.07

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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.