Home / 12,621.21-17,414.46-7,243.31

Finding the Fourth Proportional to 12,621.21, 17,414.46 and 7,243.31

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Solution

The fourth proportional to 12,621.21, 17,414.46 and 7,243.31 is: 9,994.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621.21 : 17,414.46 = 7,243.31 : x
  2. Step 2: Convert to fraction form
    12,621.21/17,414.46 = 7,243.31/x
  3. Step 3: Cross multiply
    12,621.21x = 17,414.46 × 7,243.31
  4. Step 4: Simplify right side
    12,621.21x = 126,138,332.26
  5. Step 5: Solve for x
    x = 126,138,332.26/12,621.21
  6. Step 6: Final answer
    x = 9,994.16

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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.