Home / 18,519.55-27,783.65-5,372.17

Finding the Fourth Proportional to 18,519.55, 27,783.65 and 5,372.17

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Solution

The fourth proportional to 18,519.55, 27,783.65 and 5,372.17 is: 8,059.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.55 : 27,783.65 = 5,372.17 : x
  2. Step 2: Convert to fraction form
    18,519.55/27,783.65 = 5,372.17/x
  3. Step 3: Cross multiply
    18,519.55x = 27,783.65 × 5,372.17
  4. Step 4: Simplify right side
    18,519.55x = 149,258,491.02
  5. Step 5: Solve for x
    x = 149,258,491.02/18,519.55
  6. Step 6: Final answer
    x = 8,059.51

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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.