Home / 12,480.13-17,222.52-6,891.13

Finding the Fourth Proportional to 12,480.13, 17,222.52 and 6,891.13

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Solution

The fourth proportional to 12,480.13, 17,222.52 and 6,891.13 is: 9,509.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.13 : 17,222.52 = 6,891.13 : x
  2. Step 2: Convert to fraction form
    12,480.13/17,222.52 = 6,891.13/x
  3. Step 3: Cross multiply
    12,480.13x = 17,222.52 × 6,891.13
  4. Step 4: Simplify right side
    12,480.13x = 118,682,624.25
  5. Step 5: Solve for x
    x = 118,682,624.25/12,480.13
  6. Step 6: Final answer
    x = 9,509.73

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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.