Home / 12,372.71-18,560.74-3,607.56

Finding the Fourth Proportional to 12,372.71, 18,560.74 and 3,607.56

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Solution

The fourth proportional to 12,372.71, 18,560.74 and 3,607.56 is: 5,411.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.71 : 18,560.74 = 3,607.56 : x
  2. Step 2: Convert to fraction form
    12,372.71/18,560.74 = 3,607.56/x
  3. Step 3: Cross multiply
    12,372.71x = 18,560.74 × 3,607.56
  4. Step 4: Simplify right side
    12,372.71x = 66,958,983.19
  5. Step 5: Solve for x
    x = 66,958,983.19/12,372.71
  6. Step 6: Final answer
    x = 5,411.83

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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.