Home / 12,355.39-18,531.06-3,588.22

Finding the Fourth Proportional to 12,355.39, 18,531.06 and 3,588.22

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Solution

The fourth proportional to 12,355.39, 18,531.06 and 3,588.22 is: 5,381.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.39 : 18,531.06 = 3,588.22 : x
  2. Step 2: Convert to fraction form
    12,355.39/18,531.06 = 3,588.22/x
  3. Step 3: Cross multiply
    12,355.39x = 18,531.06 × 3,588.22
  4. Step 4: Simplify right side
    12,355.39x = 66,493,520.11
  5. Step 5: Solve for x
    x = 66,493,520.11/12,355.39
  6. Step 6: Final answer
    x = 5,381.74

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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.