Home / 18,513.08-27,764.40-6,665.12

Finding the Fourth Proportional to 18,513.08, 27,764.40 and 6,665.12

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Solution

The fourth proportional to 18,513.08, 27,764.40 and 6,665.12 is: 9,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513.08 : 27,764.40 = 6,665.12 : x
  2. Step 2: Convert to fraction form
    18,513.08/27,764.40 = 6,665.12/x
  3. Step 3: Cross multiply
    18,513.08x = 27,764.40 × 6,665.12
  4. Step 4: Simplify right side
    18,513.08x = 185,053,057.73
  5. Step 5: Solve for x
    x = 185,053,057.73/18,513.08
  6. Step 6: Final answer
    x = 9,995.80

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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.