Home / 13,609.83-20,412.57-5,293.65

Finding the Fourth Proportional to 13,609.83, 20,412.57 and 5,293.65

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Solution

The fourth proportional to 13,609.83, 20,412.57 and 5,293.65 is: 7,939.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.83 : 20,412.57 = 5,293.65 : x
  2. Step 2: Convert to fraction form
    13,609.83/20,412.57 = 5,293.65/x
  3. Step 3: Cross multiply
    13,609.83x = 20,412.57 × 5,293.65
  4. Step 4: Simplify right side
    13,609.83x = 108,057,001.18
  5. Step 5: Solve for x
    x = 108,057,001.18/13,609.83
  6. Step 6: Final answer
    x = 7,939.63

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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.