Home / 12,239.56-16,890.94-6,934.38

Finding the Fourth Proportional to 12,239.56, 16,890.94 and 6,934.38

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Solution

The fourth proportional to 12,239.56, 16,890.94 and 6,934.38 is: 9,569.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.56 : 16,890.94 = 6,934.38 : x
  2. Step 2: Convert to fraction form
    12,239.56/16,890.94 = 6,934.38/x
  3. Step 3: Cross multiply
    12,239.56x = 16,890.94 × 6,934.38
  4. Step 4: Simplify right side
    12,239.56x = 117,128,196.52
  5. Step 5: Solve for x
    x = 117,128,196.52/12,239.56
  6. Step 6: Final answer
    x = 9,569.64

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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.