Home / 12,479.55-17,221.66-6,814.25

Finding the Fourth Proportional to 12,479.55, 17,221.66 and 6,814.25

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Solution

The fourth proportional to 12,479.55, 17,221.66 and 6,814.25 is: 9,403.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479.55 : 17,221.66 = 6,814.25 : x
  2. Step 2: Convert to fraction form
    12,479.55/17,221.66 = 6,814.25/x
  3. Step 3: Cross multiply
    12,479.55x = 17,221.66 × 6,814.25
  4. Step 4: Simplify right side
    12,479.55x = 117,352,696.66
  5. Step 5: Solve for x
    x = 117,352,696.66/12,479.55
  6. Step 6: Final answer
    x = 9,403.60

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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.