Home / 12,148.74-18,193.68-6,938.82

Finding the Fourth Proportional to 12,148.74, 18,193.68 and 6,938.82

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Solution

The fourth proportional to 12,148.74, 18,193.68 and 6,938.82 is: 10,391.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.74 : 18,193.68 = 6,938.82 : x
  2. Step 2: Convert to fraction form
    12,148.74/18,193.68 = 6,938.82/x
  3. Step 3: Cross multiply
    12,148.74x = 18,193.68 × 6,938.82
  4. Step 4: Simplify right side
    12,148.74x = 126,242,670.66
  5. Step 5: Solve for x
    x = 126,242,670.66/12,148.74
  6. Step 6: Final answer
    x = 10,391.42

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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.