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Finding the Fourth Proportional to 16,083.80, 24,124.80 and 4,990.40

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Solution

The fourth proportional to 16,083.80, 24,124.80 and 4,990.40 is: 7,485.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,083.80 : 24,124.80 = 4,990.40 : x
  2. Step 2: Convert to fraction form
    16,083.80/24,124.80 = 4,990.40/x
  3. Step 3: Cross multiply
    16,083.80x = 24,124.80 × 4,990.40
  4. Step 4: Simplify right side
    16,083.80x = 120,392,401.92
  5. Step 5: Solve for x
    x = 120,392,401.92/16,083.80
  6. Step 6: Final answer
    x = 7,485.32

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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.