Home / 11,826.92-16,320.92-6,449.40

Finding the Fourth Proportional to 11,826.92, 16,320.92 and 6,449.40

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Solution

The fourth proportional to 11,826.92, 16,320.92 and 6,449.40 is: 8,900.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,826.92 : 16,320.92 = 6,449.40 : x
  2. Step 2: Convert to fraction form
    11,826.92/16,320.92 = 6,449.40/x
  3. Step 3: Cross multiply
    11,826.92x = 16,320.92 × 6,449.40
  4. Step 4: Simplify right side
    11,826.92x = 105,260,141.45
  5. Step 5: Solve for x
    x = 105,260,141.45/11,826.92
  6. Step 6: Final answer
    x = 8,900.05

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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.