Home / 9,426.78-13,012.01-6,781.88

Finding the Fourth Proportional to 9,426.78, 13,012.01 and 6,781.88

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Solution

The fourth proportional to 9,426.78, 13,012.01 and 6,781.88 is: 9,361.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,426.78 : 13,012.01 = 6,781.88 : x
  2. Step 2: Convert to fraction form
    9,426.78/13,012.01 = 6,781.88/x
  3. Step 3: Cross multiply
    9,426.78x = 13,012.01 × 6,781.88
  4. Step 4: Simplify right side
    9,426.78x = 88,245,791.41
  5. Step 5: Solve for x
    x = 88,245,791.41/9,426.78
  6. Step 6: Final answer
    x = 9,361.18

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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.