Home / 12,212.60-18,322.34-3,447.59

Finding the Fourth Proportional to 12,212.60, 18,322.34 and 3,447.59

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Solution

The fourth proportional to 12,212.60, 18,322.34 and 3,447.59 is: 5,172.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212.60 : 18,322.34 = 3,447.59 : x
  2. Step 2: Convert to fraction form
    12,212.60/18,322.34 = 3,447.59/x
  3. Step 3: Cross multiply
    12,212.60x = 18,322.34 × 3,447.59
  4. Step 4: Simplify right side
    12,212.60x = 63,167,916.16
  5. Step 5: Solve for x
    x = 63,167,916.16/12,212.60
  6. Step 6: Final answer
    x = 5,172.36

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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.