Home / 8,419.35-12,629.02-3,738.26

Finding the Fourth Proportional to 8,419.35, 12,629.02 and 3,738.26

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Solution

The fourth proportional to 8,419.35, 12,629.02 and 3,738.26 is: 5,607.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.35 : 12,629.02 = 3,738.26 : x
  2. Step 2: Convert to fraction form
    8,419.35/12,629.02 = 3,738.26/x
  3. Step 3: Cross multiply
    8,419.35x = 12,629.02 × 3,738.26
  4. Step 4: Simplify right side
    8,419.35x = 47,210,478.47
  5. Step 5: Solve for x
    x = 47,210,478.47/8,419.35
  6. Step 6: Final answer
    x = 5,607.38

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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.