Home / 11,333.97-15,639.75-6,621

Finding the Fourth Proportional to 11,333.97, 15,639.75 and 6,621

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Solution

The fourth proportional to 11,333.97, 15,639.75 and 6,621 is: 9,136.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,333.97 : 15,639.75 = 6,621 : x
  2. Step 2: Convert to fraction form
    11,333.97/15,639.75 = 6,621/x
  3. Step 3: Cross multiply
    11,333.97x = 15,639.75 × 6,621
  4. Step 4: Simplify right side
    11,333.97x = 103,550,784.75
  5. Step 5: Solve for x
    x = 103,550,784.75/11,333.97
  6. Step 6: Final answer
    x = 9,136.32

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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.