Home / 13,416.28-20,124.42-4,183

Finding the Fourth Proportional to 13,416.28, 20,124.42 and 4,183

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Solution

The fourth proportional to 13,416.28, 20,124.42 and 4,183 is: 6,274.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.28 : 20,124.42 = 4,183 : x
  2. Step 2: Convert to fraction form
    13,416.28/20,124.42 = 4,183/x
  3. Step 3: Cross multiply
    13,416.28x = 20,124.42 × 4,183
  4. Step 4: Simplify right side
    13,416.28x = 84,180,448.86
  5. Step 5: Solve for x
    x = 84,180,448.86/13,416.28
  6. Step 6: Final answer
    x = 6,274.50

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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.