Home / 13,448.60-20,170.02-4,209.56

Finding the Fourth Proportional to 13,448.60, 20,170.02 and 4,209.56

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Solution

The fourth proportional to 13,448.60, 20,170.02 and 4,209.56 is: 6,313.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.60 : 20,170.02 = 4,209.56 : x
  2. Step 2: Convert to fraction form
    13,448.60/20,170.02 = 4,209.56/x
  3. Step 3: Cross multiply
    13,448.60x = 20,170.02 × 4,209.56
  4. Step 4: Simplify right side
    13,448.60x = 84,906,909.39
  5. Step 5: Solve for x
    x = 84,906,909.39/13,448.60
  6. Step 6: Final answer
    x = 6,313.44

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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.