Home / 18,990.09-26,206.38-11,033.82

Finding the Fourth Proportional to 18,990.09, 26,206.38 and 11,033.82

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Solution

The fourth proportional to 18,990.09, 26,206.38 and 11,033.82 is: 15,226.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,990.09 : 26,206.38 = 11,033.82 : x
  2. Step 2: Convert to fraction form
    18,990.09/26,206.38 = 11,033.82/x
  3. Step 3: Cross multiply
    18,990.09x = 26,206.38 × 11,033.82
  4. Step 4: Simplify right side
    18,990.09x = 289,156,479.77
  5. Step 5: Solve for x
    x = 289,156,479.77/18,990.09
  6. Step 6: Final answer
    x = 15,226.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.