Home / 12,239.66-16,890.19-6,934.37

Finding the Fourth Proportional to 12,239.66, 16,890.19 and 6,934.37

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Solution

The fourth proportional to 12,239.66, 16,890.19 and 6,934.37 is: 9,569.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.66 : 16,890.19 = 6,934.37 : x
  2. Step 2: Convert to fraction form
    12,239.66/16,890.19 = 6,934.37/x
  3. Step 3: Cross multiply
    12,239.66x = 16,890.19 × 6,934.37
  4. Step 4: Simplify right side
    12,239.66x = 117,122,826.83
  5. Step 5: Solve for x
    x = 117,122,826.83/12,239.66
  6. Step 6: Final answer
    x = 9,569.12

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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.