Home / 12,480.29-17,222.51-6,814.82

Finding the Fourth Proportional to 12,480.29, 17,222.51 and 6,814.82

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Solution

The fourth proportional to 12,480.29, 17,222.51 and 6,814.82 is: 9,404.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.29 : 17,222.51 = 6,814.82 : x
  2. Step 2: Convert to fraction form
    12,480.29/17,222.51 = 6,814.82/x
  3. Step 3: Cross multiply
    12,480.29x = 17,222.51 × 6,814.82
  4. Step 4: Simplify right side
    12,480.29x = 117,368,185.41
  5. Step 5: Solve for x
    x = 117,368,185.41/12,480.29
  6. Step 6: Final answer
    x = 9,404.29

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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.