Home / 11,320.92-15,621.16-6,351.96

Finding the Fourth Proportional to 11,320.92, 15,621.16 and 6,351.96

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Solution

The fourth proportional to 11,320.92, 15,621.16 and 6,351.96 is: 8,764.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.92 : 15,621.16 = 6,351.96 : x
  2. Step 2: Convert to fraction form
    11,320.92/15,621.16 = 6,351.96/x
  3. Step 3: Cross multiply
    11,320.92x = 15,621.16 × 6,351.96
  4. Step 4: Simplify right side
    11,320.92x = 99,224,983.47
  5. Step 5: Solve for x
    x = 99,224,983.47/11,320.92
  6. Step 6: Final answer
    x = 8,764.75

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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.