Home / 8,449.48-11,660.32-4,621.12

Finding the Fourth Proportional to 8,449.48, 11,660.32 and 4,621.12

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Solution

The fourth proportional to 8,449.48, 11,660.32 and 4,621.12 is: 6,377.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449.48 : 11,660.32 = 4,621.12 : x
  2. Step 2: Convert to fraction form
    8,449.48/11,660.32 = 4,621.12/x
  3. Step 3: Cross multiply
    8,449.48x = 11,660.32 × 4,621.12
  4. Step 4: Simplify right side
    8,449.48x = 53,883,737.96
  5. Step 5: Solve for x
    x = 53,883,737.96/8,449.48
  6. Step 6: Final answer
    x = 6,377.17

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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.