Home / 7,727.20-11,636.16-5,551.13

Finding the Fourth Proportional to 7,727.20, 11,636.16 and 5,551.13

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Solution

The fourth proportional to 7,727.20, 11,636.16 and 5,551.13 is: 8,359.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.20 : 11,636.16 = 5,551.13 : x
  2. Step 2: Convert to fraction form
    7,727.20/11,636.16 = 5,551.13/x
  3. Step 3: Cross multiply
    7,727.20x = 11,636.16 × 5,551.13
  4. Step 4: Simplify right side
    7,727.20x = 64,593,845.13
  5. Step 5: Solve for x
    x = 64,593,845.13/7,727.20
  6. Step 6: Final answer
    x = 8,359.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.