Home / 6,918.80-10,424.42-6,261.56

Finding the Fourth Proportional to 6,918.80, 10,424.42 and 6,261.56

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Solution

The fourth proportional to 6,918.80, 10,424.42 and 6,261.56 is: 9,434.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.80 : 10,424.42 = 6,261.56 : x
  2. Step 2: Convert to fraction form
    6,918.80/10,424.42 = 6,261.56/x
  3. Step 3: Cross multiply
    6,918.80x = 10,424.42 × 6,261.56
  4. Step 4: Simplify right side
    6,918.80x = 65,273,131.30
  5. Step 5: Solve for x
    x = 65,273,131.30/6,918.80
  6. Step 6: Final answer
    x = 9,434.17

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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.