Home / 12,200.08-18,300.30-3,881.38

Finding the Fourth Proportional to 12,200.08, 18,300.30 and 3,881.38

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Solution

The fourth proportional to 12,200.08, 18,300.30 and 3,881.38 is: 5,822.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200.08 : 18,300.30 = 3,881.38 : x
  2. Step 2: Convert to fraction form
    12,200.08/18,300.30 = 3,881.38/x
  3. Step 3: Cross multiply
    12,200.08x = 18,300.30 × 3,881.38
  4. Step 4: Simplify right side
    12,200.08x = 71,030,418.41
  5. Step 5: Solve for x
    x = 71,030,418.41/12,200.08
  6. Step 6: Final answer
    x = 5,822.13

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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.