Home / 12,392.31-18,578.75-6,147.93

Finding the Fourth Proportional to 12,392.31, 18,578.75 and 6,147.93

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Solution

The fourth proportional to 12,392.31, 18,578.75 and 6,147.93 is: 9,217.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.31 : 18,578.75 = 6,147.93 : x
  2. Step 2: Convert to fraction form
    12,392.31/18,578.75 = 6,147.93/x
  3. Step 3: Cross multiply
    12,392.31x = 18,578.75 × 6,147.93
  4. Step 4: Simplify right side
    12,392.31x = 114,220,823.75
  5. Step 5: Solve for x
    x = 114,220,823.75/12,392.31
  6. Step 6: Final answer
    x = 9,217.07

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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.