Home / 18,251.48-27,366.74-7,145.17

Finding the Fourth Proportional to 18,251.48, 27,366.74 and 7,145.17

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Solution

The fourth proportional to 18,251.48, 27,366.74 and 7,145.17 is: 10,713.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.48 : 27,366.74 = 7,145.17 : x
  2. Step 2: Convert to fraction form
    18,251.48/27,366.74 = 7,145.17/x
  3. Step 3: Cross multiply
    18,251.48x = 27,366.74 × 7,145.17
  4. Step 4: Simplify right side
    18,251.48x = 195,539,905.50
  5. Step 5: Solve for x
    x = 195,539,905.50/18,251.48
  6. Step 6: Final answer
    x = 10,713.65

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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.