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Finding the Fourth Proportional to 16,561.60, 24,861.60 and 9,995.20

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Solution

The fourth proportional to 16,561.60, 24,861.60 and 9,995.20 is: 15,004.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,561.60 : 24,861.60 = 9,995.20 : x
  2. Step 2: Convert to fraction form
    16,561.60/24,861.60 = 9,995.20/x
  3. Step 3: Cross multiply
    16,561.60x = 24,861.60 × 9,995.20
  4. Step 4: Simplify right side
    16,561.60x = 248,496,664.32
  5. Step 5: Solve for x
    x = 248,496,664.32/16,561.60
  6. Step 6: Final answer
    x = 15,004.39

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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.