Home / 12,372.45-18,561.73-3,607.36

Finding the Fourth Proportional to 12,372.45, 18,561.73 and 3,607.36

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Solution

The fourth proportional to 12,372.45, 18,561.73 and 3,607.36 is: 5,411.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.45 : 18,561.73 = 3,607.36 : x
  2. Step 2: Convert to fraction form
    12,372.45/18,561.73 = 3,607.36/x
  3. Step 3: Cross multiply
    12,372.45x = 18,561.73 × 3,607.36
  4. Step 4: Simplify right side
    12,372.45x = 66,958,856.02
  5. Step 5: Solve for x
    x = 66,958,856.02/12,372.45
  6. Step 6: Final answer
    x = 5,411.93

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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.