Home / 16,388.20-24,557.10-12,208.60

Finding the Fourth Proportional to 16,388.20, 24,557.10 and 12,208.60

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Solution

The fourth proportional to 16,388.20, 24,557.10 and 12,208.60 is: 18,294.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,388.20 : 24,557.10 = 12,208.60 : x
  2. Step 2: Convert to fraction form
    16,388.20/24,557.10 = 12,208.60/x
  3. Step 3: Cross multiply
    16,388.20x = 24,557.10 × 12,208.60
  4. Step 4: Simplify right side
    16,388.20x = 299,807,811.06
  5. Step 5: Solve for x
    x = 299,807,811.06/16,388.20
  6. Step 6: Final answer
    x = 18,294.13

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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.