Home / 18,338.68-27,491.28-6,649.30

Finding the Fourth Proportional to 18,338.68, 27,491.28 and 6,649.30

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Solution

The fourth proportional to 18,338.68, 27,491.28 and 6,649.30 is: 9,967.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338.68 : 27,491.28 = 6,649.30 : x
  2. Step 2: Convert to fraction form
    18,338.68/27,491.28 = 6,649.30/x
  3. Step 3: Cross multiply
    18,338.68x = 27,491.28 × 6,649.30
  4. Step 4: Simplify right side
    18,338.68x = 182,797,768.10
  5. Step 5: Solve for x
    x = 182,797,768.10/18,338.68
  6. Step 6: Final answer
    x = 9,967.88

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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.