Home / 16,431.60-24,647.40-8,112.90

Finding the Fourth Proportional to 16,431.60, 24,647.40 and 8,112.90

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Solution

The fourth proportional to 16,431.60, 24,647.40 and 8,112.90 is: 12,169.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,431.60 : 24,647.40 = 8,112.90 : x
  2. Step 2: Convert to fraction form
    16,431.60/24,647.40 = 8,112.90/x
  3. Step 3: Cross multiply
    16,431.60x = 24,647.40 × 8,112.90
  4. Step 4: Simplify right side
    16,431.60x = 199,961,891.46
  5. Step 5: Solve for x
    x = 199,961,891.46/16,431.60
  6. Step 6: Final answer
    x = 12,169.35

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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.