Home / 12,631.34-18,949.48-3,867.56

Finding the Fourth Proportional to 12,631.34, 18,949.48 and 3,867.56

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Solution

The fourth proportional to 12,631.34, 18,949.48 and 3,867.56 is: 5,802.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631.34 : 18,949.48 = 3,867.56 : x
  2. Step 2: Convert to fraction form
    12,631.34/18,949.48 = 3,867.56/x
  3. Step 3: Cross multiply
    12,631.34x = 18,949.48 × 3,867.56
  4. Step 4: Simplify right side
    12,631.34x = 73,288,250.87
  5. Step 5: Solve for x
    x = 73,288,250.87/12,631.34
  6. Step 6: Final answer
    x = 5,802.10

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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.