Home / 6,778.77-9,356.15-4,127.02

Finding the Fourth Proportional to 6,778.77, 9,356.15 and 4,127.02

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Solution

The fourth proportional to 6,778.77, 9,356.15 and 4,127.02 is: 5,696.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,778.77 : 9,356.15 = 4,127.02 : x
  2. Step 2: Convert to fraction form
    6,778.77/9,356.15 = 4,127.02/x
  3. Step 3: Cross multiply
    6,778.77x = 9,356.15 × 4,127.02
  4. Step 4: Simplify right side
    6,778.77x = 38,613,018.17
  5. Step 5: Solve for x
    x = 38,613,018.17/6,778.77
  6. Step 6: Final answer
    x = 5,696.17

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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.