Home / 11,949.20-16,464.36-8,800.40

Finding the Fourth Proportional to 11,949.20, 16,464.36 and 8,800.40

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Solution

The fourth proportional to 11,949.20, 16,464.36 and 8,800.40 is: 12,125.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,949.20 : 16,464.36 = 8,800.40 : x
  2. Step 2: Convert to fraction form
    11,949.20/16,464.36 = 8,800.40/x
  3. Step 3: Cross multiply
    11,949.20x = 16,464.36 × 8,800.40
  4. Step 4: Simplify right side
    11,949.20x = 144,892,953.74
  5. Step 5: Solve for x
    x = 144,892,953.74/11,949.20
  6. Step 6: Final answer
    x = 12,125.75

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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.