Home / 18,155.36-27,238.50-5,676.71

Finding the Fourth Proportional to 18,155.36, 27,238.50 and 5,676.71

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Solution

The fourth proportional to 18,155.36, 27,238.50 and 5,676.71 is: 8,516.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,155.36 : 27,238.50 = 5,676.71 : x
  2. Step 2: Convert to fraction form
    18,155.36/27,238.50 = 5,676.71/x
  3. Step 3: Cross multiply
    18,155.36x = 27,238.50 × 5,676.71
  4. Step 4: Simplify right side
    18,155.36x = 154,624,929.14
  5. Step 5: Solve for x
    x = 154,624,929.14/18,155.36
  6. Step 6: Final answer
    x = 8,516.77

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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.