Home / 12,301.20-16,826.40-12,009.60

Finding the Fourth Proportional to 12,301.20, 16,826.40 and 12,009.60

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Solution

The fourth proportional to 12,301.20, 16,826.40 and 12,009.60 is: 16,427.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,301.20 : 16,826.40 = 12,009.60 : x
  2. Step 2: Convert to fraction form
    12,301.20/16,826.40 = 12,009.60/x
  3. Step 3: Cross multiply
    12,301.20x = 16,826.40 × 12,009.60
  4. Step 4: Simplify right side
    12,301.20x = 202,078,333.44
  5. Step 5: Solve for x
    x = 202,078,333.44/12,301.20
  6. Step 6: Final answer
    x = 16,427.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.