Home / 6,821.19-10,216.79-5,637.78

Finding the Fourth Proportional to 6,821.19, 10,216.79 and 5,637.78

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Solution

The fourth proportional to 6,821.19, 10,216.79 and 5,637.78 is: 8,444.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.19 : 10,216.79 = 5,637.78 : x
  2. Step 2: Convert to fraction form
    6,821.19/10,216.79 = 5,637.78/x
  3. Step 3: Cross multiply
    6,821.19x = 10,216.79 × 5,637.78
  4. Step 4: Simplify right side
    6,821.19x = 57,599,935.05
  5. Step 5: Solve for x
    x = 57,599,935.05/6,821.19
  6. Step 6: Final answer
    x = 8,444.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.