Home / 12,372.54-18,558.81-10,174.61

Finding the Fourth Proportional to 12,372.54, 18,558.81 and 10,174.61

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Solution

The fourth proportional to 12,372.54, 18,558.81 and 10,174.61 is: 15,261.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.54 : 18,558.81 = 10,174.61 : x
  2. Step 2: Convert to fraction form
    12,372.54/18,558.81 = 10,174.61/x
  3. Step 3: Cross multiply
    12,372.54x = 18,558.81 × 10,174.61
  4. Step 4: Simplify right side
    12,372.54x = 188,828,561.02
  5. Step 5: Solve for x
    x = 188,828,561.02/12,372.54
  6. Step 6: Final answer
    x = 15,261.91

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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.