Home / 12,192.39-16,826.87-6,887.55

Finding the Fourth Proportional to 12,192.39, 16,826.87 and 6,887.55

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Solution

The fourth proportional to 12,192.39, 16,826.87 and 6,887.55 is: 9,505.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192.39 : 16,826.87 = 6,887.55 : x
  2. Step 2: Convert to fraction form
    12,192.39/16,826.87 = 6,887.55/x
  3. Step 3: Cross multiply
    12,192.39x = 16,826.87 × 6,887.55
  4. Step 4: Simplify right side
    12,192.39x = 115,895,908.47
  5. Step 5: Solve for x
    x = 115,895,908.47/12,192.39
  6. Step 6: Final answer
    x = 9,505.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.