Home / 12,021.80-18,032.70-5,001.68

Finding the Fourth Proportional to 12,021.80, 18,032.70 and 5,001.68

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Solution

The fourth proportional to 12,021.80, 18,032.70 and 5,001.68 is: 7,502.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,021.80 : 18,032.70 = 5,001.68 : x
  2. Step 2: Convert to fraction form
    12,021.80/18,032.70 = 5,001.68/x
  3. Step 3: Cross multiply
    12,021.80x = 18,032.70 × 5,001.68
  4. Step 4: Simplify right side
    12,021.80x = 90,193,704.77
  5. Step 5: Solve for x
    x = 90,193,704.77/12,021.80
  6. Step 6: Final answer
    x = 7,502.52

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Similar ratio
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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.