Home / 12,608.11-18,905.58-3,722.26

Finding the Fourth Proportional to 12,608.11, 18,905.58 and 3,722.26

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Solution

The fourth proportional to 12,608.11, 18,905.58 and 3,722.26 is: 5,581.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,608.11 : 18,905.58 = 3,722.26 : x
  2. Step 2: Convert to fraction form
    12,608.11/18,905.58 = 3,722.26/x
  3. Step 3: Cross multiply
    12,608.11x = 18,905.58 × 3,722.26
  4. Step 4: Simplify right side
    12,608.11x = 70,371,484.21
  5. Step 5: Solve for x
    x = 70,371,484.21/12,608.11
  6. Step 6: Final answer
    x = 5,581.45

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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.