Home / 15,216.64-20,998.40-8,592.64

Finding the Fourth Proportional to 15,216.64, 20,998.40 and 8,592.64

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Solution

The fourth proportional to 15,216.64, 20,998.40 and 8,592.64 is: 11,857.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216.64 : 20,998.40 = 8,592.64 : x
  2. Step 2: Convert to fraction form
    15,216.64/20,998.40 = 8,592.64/x
  3. Step 3: Cross multiply
    15,216.64x = 20,998.40 × 8,592.64
  4. Step 4: Simplify right side
    15,216.64x = 180,431,691.78
  5. Step 5: Solve for x
    x = 180,431,691.78/15,216.64
  6. Step 6: Final answer
    x = 11,857.53

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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.