Home / 12,391.08-17,099.51-6,725.69

Finding the Fourth Proportional to 12,391.08, 17,099.51 and 6,725.69

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Solution

The fourth proportional to 12,391.08, 17,099.51 and 6,725.69 is: 9,281.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391.08 : 17,099.51 = 6,725.69 : x
  2. Step 2: Convert to fraction form
    12,391.08/17,099.51 = 6,725.69/x
  3. Step 3: Cross multiply
    12,391.08x = 17,099.51 × 6,725.69
  4. Step 4: Simplify right side
    12,391.08x = 115,005,934.73
  5. Step 5: Solve for x
    x = 115,005,934.73/12,391.08
  6. Step 6: Final answer
    x = 9,281.35

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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.