Home / 18,378.77-27,564.39-5,227.61

Finding the Fourth Proportional to 18,378.77, 27,564.39 and 5,227.61

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Solution

The fourth proportional to 18,378.77, 27,564.39 and 5,227.61 is: 7,840.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.77 : 27,564.39 = 5,227.61 : x
  2. Step 2: Convert to fraction form
    18,378.77/27,564.39 = 5,227.61/x
  3. Step 3: Cross multiply
    18,378.77x = 27,564.39 × 5,227.61
  4. Step 4: Simplify right side
    18,378.77x = 144,095,742.99
  5. Step 5: Solve for x
    x = 144,095,742.99/18,378.77
  6. Step 6: Final answer
    x = 7,840.34

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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.