Home / 12,193.78-16,826.65-6,887.74

Finding the Fourth Proportional to 12,193.78, 16,826.65 and 6,887.74

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Solution

The fourth proportional to 12,193.78, 16,826.65 and 6,887.74 is: 9,504.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,193.78 : 16,826.65 = 6,887.74 : x
  2. Step 2: Convert to fraction form
    12,193.78/16,826.65 = 6,887.74/x
  3. Step 3: Cross multiply
    12,193.78x = 16,826.65 × 6,887.74
  4. Step 4: Simplify right side
    12,193.78x = 115,897,590.27
  5. Step 5: Solve for x
    x = 115,897,590.27/12,193.78
  6. Step 6: Final answer
    x = 9,504.65

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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.