Home / 14,187.42-19,582.92-8,220.54

Finding the Fourth Proportional to 14,187.42, 19,582.92 and 8,220.54

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Solution

The fourth proportional to 14,187.42, 19,582.92 and 8,220.54 is: 11,346.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.42 : 19,582.92 = 8,220.54 : x
  2. Step 2: Convert to fraction form
    14,187.42/19,582.92 = 8,220.54/x
  3. Step 3: Cross multiply
    14,187.42x = 19,582.92 × 8,220.54
  4. Step 4: Simplify right side
    14,187.42x = 160,982,177.18
  5. Step 5: Solve for x
    x = 160,982,177.18/14,187.42
  6. Step 6: Final answer
    x = 11,346.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.