Home / 13,590.16-20,381.54-3,727.09

Finding the Fourth Proportional to 13,590.16, 20,381.54 and 3,727.09

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Solution

The fourth proportional to 13,590.16, 20,381.54 and 3,727.09 is: 5,589.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.16 : 20,381.54 = 3,727.09 : x
  2. Step 2: Convert to fraction form
    13,590.16/20,381.54 = 3,727.09/x
  3. Step 3: Cross multiply
    13,590.16x = 20,381.54 × 3,727.09
  4. Step 4: Simplify right side
    13,590.16x = 75,963,833.92
  5. Step 5: Solve for x
    x = 75,963,833.92/13,590.16
  6. Step 6: Final answer
    x = 5,589.62

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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.