Home / 12,372.24-18,561.48-3,607.20

Finding the Fourth Proportional to 12,372.24, 18,561.48 and 3,607.20

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Solution

The fourth proportional to 12,372.24, 18,561.48 and 3,607.20 is: 5,411.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.24 : 18,561.48 = 3,607.20 : x
  2. Step 2: Convert to fraction form
    12,372.24/18,561.48 = 3,607.20/x
  3. Step 3: Cross multiply
    12,372.24x = 18,561.48 × 3,607.20
  4. Step 4: Simplify right side
    12,372.24x = 66,954,970.66
  5. Step 5: Solve for x
    x = 66,954,970.66/12,372.24
  6. Step 6: Final answer
    x = 5,411.71

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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.