Home / 12,200.26-18,307.56-5,179.81

Finding the Fourth Proportional to 12,200.26, 18,307.56 and 5,179.81

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Solution

The fourth proportional to 12,200.26, 18,307.56 and 5,179.81 is: 7,772.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200.26 : 18,307.56 = 5,179.81 : x
  2. Step 2: Convert to fraction form
    12,200.26/18,307.56 = 5,179.81/x
  3. Step 3: Cross multiply
    12,200.26x = 18,307.56 × 5,179.81
  4. Step 4: Simplify right side
    12,200.26x = 94,829,682.36
  5. Step 5: Solve for x
    x = 94,829,682.36/12,200.26
  6. Step 6: Final answer
    x = 7,772.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.