Home / 12,031.20-16,608.11-8,869.60

Finding the Fourth Proportional to 12,031.20, 16,608.11 and 8,869.60

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Solution

The fourth proportional to 12,031.20, 16,608.11 and 8,869.60 is: 12,243.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,031.20 : 16,608.11 = 8,869.60 : x
  2. Step 2: Convert to fraction form
    12,031.20/16,608.11 = 8,869.60/x
  3. Step 3: Cross multiply
    12,031.20x = 16,608.11 × 8,869.60
  4. Step 4: Simplify right side
    12,031.20x = 147,307,268.87
  5. Step 5: Solve for x
    x = 147,307,268.87/12,031.20
  6. Step 6: Final answer
    x = 12,243.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.