Home / 18,287.21-27,434.68-5,805.66

Finding the Fourth Proportional to 18,287.21, 27,434.68 and 5,805.66

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Solution

The fourth proportional to 18,287.21, 27,434.68 and 5,805.66 is: 8,709.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.21 : 27,434.68 = 5,805.66 : x
  2. Step 2: Convert to fraction form
    18,287.21/27,434.68 = 5,805.66/x
  3. Step 3: Cross multiply
    18,287.21x = 27,434.68 × 5,805.66
  4. Step 4: Simplify right side
    18,287.21x = 159,276,424.29
  5. Step 5: Solve for x
    x = 159,276,424.29/18,287.21
  6. Step 6: Final answer
    x = 8,709.72

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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.