Home / 6,623.49-9,140.34-3,639.18

Finding the Fourth Proportional to 6,623.49, 9,140.34 and 3,639.18

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Solution

The fourth proportional to 6,623.49, 9,140.34 and 3,639.18 is: 5,022.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,623.49 : 9,140.34 = 3,639.18 : x
  2. Step 2: Convert to fraction form
    6,623.49/9,140.34 = 3,639.18/x
  3. Step 3: Cross multiply
    6,623.49x = 9,140.34 × 3,639.18
  4. Step 4: Simplify right side
    6,623.49x = 33,263,342.52
  5. Step 5: Solve for x
    x = 33,263,342.52/6,623.49
  6. Step 6: Final answer
    x = 5,022.03

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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.