Home / 18,848.28-28,234.71-11,347.68

Finding the Fourth Proportional to 18,848.28, 28,234.71 and 11,347.68

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Solution

The fourth proportional to 18,848.28, 28,234.71 and 11,347.68 is: 16,998.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,848.28 : 28,234.71 = 11,347.68 : x
  2. Step 2: Convert to fraction form
    18,848.28/28,234.71 = 11,347.68/x
  3. Step 3: Cross multiply
    18,848.28x = 28,234.71 × 11,347.68
  4. Step 4: Simplify right side
    18,848.28x = 320,398,453.97
  5. Step 5: Solve for x
    x = 320,398,453.97/18,848.28
  6. Step 6: Final answer
    x = 16,998.82

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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.