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Finding the Fourth Proportional to 15,579.12, 21,493.04 and 9,600.38

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Solution

The fourth proportional to 15,579.12, 21,493.04 and 9,600.38 is: 13,244.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,579.12 : 21,493.04 = 9,600.38 : x
  2. Step 2: Convert to fraction form
    15,579.12/21,493.04 = 9,600.38/x
  3. Step 3: Cross multiply
    15,579.12x = 21,493.04 × 9,600.38
  4. Step 4: Simplify right side
    15,579.12x = 206,341,351.36
  5. Step 5: Solve for x
    x = 206,341,351.36/15,579.12
  6. Step 6: Final answer
    x = 13,244.74

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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.