Home / 18,267.08-27,406.12-7,731.68

Finding the Fourth Proportional to 18,267.08, 27,406.12 and 7,731.68

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Solution

The fourth proportional to 18,267.08, 27,406.12 and 7,731.68 is: 11,599.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,267.08 : 27,406.12 = 7,731.68 : x
  2. Step 2: Convert to fraction form
    18,267.08/27,406.12 = 7,731.68/x
  3. Step 3: Cross multiply
    18,267.08x = 27,406.12 × 7,731.68
  4. Step 4: Simplify right side
    18,267.08x = 211,895,349.88
  5. Step 5: Solve for x
    x = 211,895,349.88/18,267.08
  6. Step 6: Final answer
    x = 11,599.85

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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.