Home / 12,435.74-17,164.94-9,935.26

Finding the Fourth Proportional to 12,435.74, 17,164.94 and 9,935.26

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Solution

The fourth proportional to 12,435.74, 17,164.94 and 9,935.26 is: 13,713.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.74 : 17,164.94 = 9,935.26 : x
  2. Step 2: Convert to fraction form
    12,435.74/17,164.94 = 9,935.26/x
  3. Step 3: Cross multiply
    12,435.74x = 17,164.94 × 9,935.26
  4. Step 4: Simplify right side
    12,435.74x = 170,538,141.78
  5. Step 5: Solve for x
    x = 170,538,141.78/12,435.74
  6. Step 6: Final answer
    x = 13,713.55

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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.