Home / 18,384.13-27,576.19-10,990.70

Finding the Fourth Proportional to 18,384.13, 27,576.19 and 10,990.70

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Solution

The fourth proportional to 18,384.13, 27,576.19 and 10,990.70 is: 16,486.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,384.13 : 27,576.19 = 10,990.70 : x
  2. Step 2: Convert to fraction form
    18,384.13/27,576.19 = 10,990.70/x
  3. Step 3: Cross multiply
    18,384.13x = 27,576.19 × 10,990.70
  4. Step 4: Simplify right side
    18,384.13x = 303,081,641.75
  5. Step 5: Solve for x
    x = 303,081,641.75/18,384.13
  6. Step 6: Final answer
    x = 16,486.05

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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.