Home / 13,602.49-20,401.39-3,607.30

Finding the Fourth Proportional to 13,602.49, 20,401.39 and 3,607.30

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Solution

The fourth proportional to 13,602.49, 20,401.39 and 3,607.30 is: 5,410.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,602.49 : 20,401.39 = 3,607.30 : x
  2. Step 2: Convert to fraction form
    13,602.49/20,401.39 = 3,607.30/x
  3. Step 3: Cross multiply
    13,602.49x = 20,401.39 × 3,607.30
  4. Step 4: Simplify right side
    13,602.49x = 73,593,934.15
  5. Step 5: Solve for x
    x = 73,593,934.15/13,602.49
  6. Step 6: Final answer
    x = 5,410.33

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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.