Home / 11,399.20-15,730.83-6,363.11

Finding the Fourth Proportional to 11,399.20, 15,730.83 and 6,363.11

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Solution

The fourth proportional to 11,399.20, 15,730.83 and 6,363.11 is: 8,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,399.20 : 15,730.83 = 6,363.11 : x
  2. Step 2: Convert to fraction form
    11,399.20/15,730.83 = 6,363.11/x
  3. Step 3: Cross multiply
    11,399.20x = 15,730.83 × 6,363.11
  4. Step 4: Simplify right side
    11,399.20x = 100,097,041.01
  5. Step 5: Solve for x
    x = 100,097,041.01/11,399.20
  6. Step 6: Final answer
    x = 8,781.06

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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.