Home / 13,661.46-20,490.15-3,799.71

Finding the Fourth Proportional to 13,661.46, 20,490.15 and 3,799.71

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Solution

The fourth proportional to 13,661.46, 20,490.15 and 3,799.71 is: 5,699.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,661.46 : 20,490.15 = 3,799.71 : x
  2. Step 2: Convert to fraction form
    13,661.46/20,490.15 = 3,799.71/x
  3. Step 3: Cross multiply
    13,661.46x = 20,490.15 × 3,799.71
  4. Step 4: Simplify right side
    13,661.46x = 77,856,627.86
  5. Step 5: Solve for x
    x = 77,856,627.86/13,661.46
  6. Step 6: Final answer
    x = 5,699.00

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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.