Home / 13,380.59-18,460.41-8,073.47

Finding the Fourth Proportional to 13,380.59, 18,460.41 and 8,073.47

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Solution

The fourth proportional to 13,380.59, 18,460.41 and 8,073.47 is: 11,138.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.59 : 18,460.41 = 8,073.47 : x
  2. Step 2: Convert to fraction form
    13,380.59/18,460.41 = 8,073.47/x
  3. Step 3: Cross multiply
    13,380.59x = 18,460.41 × 8,073.47
  4. Step 4: Simplify right side
    13,380.59x = 149,039,582.20
  5. Step 5: Solve for x
    x = 149,039,582.20/13,380.59
  6. Step 6: Final answer
    x = 11,138.49

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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.