Home / 18,519.40-27,766.76-10,203.32

Finding the Fourth Proportional to 18,519.40, 27,766.76 and 10,203.32

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Solution

The fourth proportional to 18,519.40, 27,766.76 and 10,203.32 is: 15,298.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.40 : 27,766.76 = 10,203.32 : x
  2. Step 2: Convert to fraction form
    18,519.40/27,766.76 = 10,203.32/x
  3. Step 3: Cross multiply
    18,519.40x = 27,766.76 × 10,203.32
  4. Step 4: Simplify right side
    18,519.40x = 283,313,137.64
  5. Step 5: Solve for x
    x = 283,313,137.64/18,519.40
  6. Step 6: Final answer
    x = 15,298.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.