Home / 18,518.87-27,785.27-11,026.76

Finding the Fourth Proportional to 18,518.87, 27,785.27 and 11,026.76

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Solution

The fourth proportional to 18,518.87, 27,785.27 and 11,026.76 is: 16,544.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.87 : 27,785.27 = 11,026.76 : x
  2. Step 2: Convert to fraction form
    18,518.87/27,785.27 = 11,026.76/x
  3. Step 3: Cross multiply
    18,518.87x = 27,785.27 × 11,026.76
  4. Step 4: Simplify right side
    18,518.87x = 306,381,309.77
  5. Step 5: Solve for x
    x = 306,381,309.77/18,518.87
  6. Step 6: Final answer
    x = 16,544.27

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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.