Home / 12,458.25-17,192.40-7,153.41

Finding the Fourth Proportional to 12,458.25, 17,192.40 and 7,153.41

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Solution

The fourth proportional to 12,458.25, 17,192.40 and 7,153.41 is: 9,871.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458.25 : 17,192.40 = 7,153.41 : x
  2. Step 2: Convert to fraction form
    12,458.25/17,192.40 = 7,153.41/x
  3. Step 3: Cross multiply
    12,458.25x = 17,192.40 × 7,153.41
  4. Step 4: Simplify right side
    12,458.25x = 122,984,286.08
  5. Step 5: Solve for x
    x = 122,984,286.08/12,458.25
  6. Step 6: Final answer
    x = 9,871.71

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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.