Home / 12,621.58-17,416.26-7,243.74

Finding the Fourth Proportional to 12,621.58, 17,416.26 and 7,243.74

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Solution

The fourth proportional to 12,621.58, 17,416.26 and 7,243.74 is: 9,995.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621.58 : 17,416.26 = 7,243.74 : x
  2. Step 2: Convert to fraction form
    12,621.58/17,416.26 = 7,243.74/x
  3. Step 3: Cross multiply
    12,621.58x = 17,416.26 × 7,243.74
  4. Step 4: Simplify right side
    12,621.58x = 126,158,859.21
  5. Step 5: Solve for x
    x = 126,158,859.21/12,621.58
  6. Step 6: Final answer
    x = 9,995.49

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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.