Home / 12,148.26-18,193.21-6,943.20

Finding the Fourth Proportional to 12,148.26, 18,193.21 and 6,943.20

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Solution

The fourth proportional to 12,148.26, 18,193.21 and 6,943.20 is: 10,398.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.26 : 18,193.21 = 6,943.20 : x
  2. Step 2: Convert to fraction form
    12,148.26/18,193.21 = 6,943.20/x
  3. Step 3: Cross multiply
    12,148.26x = 18,193.21 × 6,943.20
  4. Step 4: Simplify right side
    12,148.26x = 126,319,095.67
  5. Step 5: Solve for x
    x = 126,319,095.67/12,148.26
  6. Step 6: Final answer
    x = 10,398.12

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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.