Home / 12,271.40-18,407.10-10,910.60

Finding the Fourth Proportional to 12,271.40, 18,407.10 and 10,910.60

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Solution

The fourth proportional to 12,271.40, 18,407.10 and 10,910.60 is: 16,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,271.40 : 18,407.10 = 10,910.60 : x
  2. Step 2: Convert to fraction form
    12,271.40/18,407.10 = 10,910.60/x
  3. Step 3: Cross multiply
    12,271.40x = 18,407.10 × 10,910.60
  4. Step 4: Simplify right side
    12,271.40x = 200,832,505.26
  5. Step 5: Solve for x
    x = 200,832,505.26/12,271.40
  6. Step 6: Final answer
    x = 16,365.90

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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.