Home / 13,416.33-20,131.79-5,630.61

Finding the Fourth Proportional to 13,416.33, 20,131.79 and 5,630.61

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Solution

The fourth proportional to 13,416.33, 20,131.79 and 5,630.61 is: 8,448.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.33 : 20,131.79 = 5,630.61 : x
  2. Step 2: Convert to fraction form
    13,416.33/20,131.79 = 5,630.61/x
  3. Step 3: Cross multiply
    13,416.33x = 20,131.79 × 5,630.61
  4. Step 4: Simplify right side
    13,416.33x = 113,354,337.11
  5. Step 5: Solve for x
    x = 113,354,337.11/13,416.33
  6. Step 6: Final answer
    x = 8,448.98

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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.