Home / 18,119.30-27,171.65-5,635.17

Finding the Fourth Proportional to 18,119.30, 27,171.65 and 5,635.17

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Solution

The fourth proportional to 18,119.30, 27,171.65 and 5,635.17 is: 8,450.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.30 : 27,171.65 = 5,635.17 : x
  2. Step 2: Convert to fraction form
    18,119.30/27,171.65 = 5,635.17/x
  3. Step 3: Cross multiply
    18,119.30x = 27,171.65 × 5,635.17
  4. Step 4: Simplify right side
    18,119.30x = 153,116,881.02
  5. Step 5: Solve for x
    x = 153,116,881.02/18,119.30
  6. Step 6: Final answer
    x = 8,450.49

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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.