Home / 13,426.02-18,524.92-8,120.74

Finding the Fourth Proportional to 13,426.02, 18,524.92 and 8,120.74

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Solution

The fourth proportional to 13,426.02, 18,524.92 and 8,120.74 is: 11,204.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.02 : 18,524.92 = 8,120.74 : x
  2. Step 2: Convert to fraction form
    13,426.02/18,524.92 = 8,120.74/x
  3. Step 3: Cross multiply
    13,426.02x = 18,524.92 × 8,120.74
  4. Step 4: Simplify right side
    13,426.02x = 150,436,058.84
  5. Step 5: Solve for x
    x = 150,436,058.84/13,426.02
  6. Step 6: Final answer
    x = 11,204.81

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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.