Home / 7,640.20-10,548.68-6,843.16

Finding the Fourth Proportional to 7,640.20, 10,548.68 and 6,843.16

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Solution

The fourth proportional to 7,640.20, 10,548.68 and 6,843.16 is: 9,448.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.20 : 10,548.68 = 6,843.16 : x
  2. Step 2: Convert to fraction form
    7,640.20/10,548.68 = 6,843.16/x
  3. Step 3: Cross multiply
    7,640.20x = 10,548.68 × 6,843.16
  4. Step 4: Simplify right side
    7,640.20x = 72,186,305.03
  5. Step 5: Solve for x
    x = 72,186,305.03/7,640.20
  6. Step 6: Final answer
    x = 9,448.22

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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.