Home / 13,653.26-20,479.88-3,792.62

Finding the Fourth Proportional to 13,653.26, 20,479.88 and 3,792.62

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Solution

The fourth proportional to 13,653.26, 20,479.88 and 3,792.62 is: 5,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.26 : 20,479.88 = 3,792.62 : x
  2. Step 2: Convert to fraction form
    13,653.26/20,479.88 = 3,792.62/x
  3. Step 3: Cross multiply
    13,653.26x = 20,479.88 × 3,792.62
  4. Step 4: Simplify right side
    13,653.26x = 77,672,402.49
  5. Step 5: Solve for x
    x = 77,672,402.49/13,653.26
  6. Step 6: Final answer
    x = 5,688.93

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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.