Home / 14,619.12-20,174.42-8,331.52

Finding the Fourth Proportional to 14,619.12, 20,174.42 and 8,331.52

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Solution

The fourth proportional to 14,619.12, 20,174.42 and 8,331.52 is: 11,497.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,619.12 : 20,174.42 = 8,331.52 : x
  2. Step 2: Convert to fraction form
    14,619.12/20,174.42 = 8,331.52/x
  3. Step 3: Cross multiply
    14,619.12x = 20,174.42 × 8,331.52
  4. Step 4: Simplify right side
    14,619.12x = 168,083,583.72
  5. Step 5: Solve for x
    x = 168,083,583.72/14,619.12
  6. Step 6: Final answer
    x = 11,497.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.