Home / 12,265.44-18,385.38-5,686.20

Finding the Fourth Proportional to 12,265.44, 18,385.38 and 5,686.20

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Solution

The fourth proportional to 12,265.44, 18,385.38 and 5,686.20 is: 8,523.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,265.44 : 18,385.38 = 5,686.20 : x
  2. Step 2: Convert to fraction form
    12,265.44/18,385.38 = 5,686.20/x
  3. Step 3: Cross multiply
    12,265.44x = 18,385.38 × 5,686.20
  4. Step 4: Simplify right side
    12,265.44x = 104,542,947.76
  5. Step 5: Solve for x
    x = 104,542,947.76/12,265.44
  6. Step 6: Final answer
    x = 8,523.38

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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.