Home / 12,348.37-18,511.62-9,439.66

Finding the Fourth Proportional to 12,348.37, 18,511.62 and 9,439.66

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Solution

The fourth proportional to 12,348.37, 18,511.62 and 9,439.66 is: 14,151.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,348.37 : 18,511.62 = 9,439.66 : x
  2. Step 2: Convert to fraction form
    12,348.37/18,511.62 = 9,439.66/x
  3. Step 3: Cross multiply
    12,348.37x = 18,511.62 × 9,439.66
  4. Step 4: Simplify right side
    12,348.37x = 174,743,398.85
  5. Step 5: Solve for x
    x = 174,743,398.85/12,348.37
  6. Step 6: Final answer
    x = 14,151.13

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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.