Home / 13,598.90-20,398.60-3,738.12

Finding the Fourth Proportional to 13,598.90, 20,398.60 and 3,738.12

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Solution

The fourth proportional to 13,598.90, 20,398.60 and 3,738.12 is: 5,607.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,598.90 : 20,398.60 = 3,738.12 : x
  2. Step 2: Convert to fraction form
    13,598.90/20,398.60 = 3,738.12/x
  3. Step 3: Cross multiply
    13,598.90x = 20,398.60 × 3,738.12
  4. Step 4: Simplify right side
    13,598.90x = 76,252,414.63
  5. Step 5: Solve for x
    x = 76,252,414.63/13,598.90
  6. Step 6: Final answer
    x = 5,607.25

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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.