Home / 14,618.75-20,174.00-8,331.53

Finding the Fourth Proportional to 14,618.75, 20,174.00 and 8,331.53

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Solution

The fourth proportional to 14,618.75, 20,174.00 and 8,331.53 is: 11,497.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618.75 : 20,174.00 = 8,331.53 : x
  2. Step 2: Convert to fraction form
    14,618.75/20,174.00 = 8,331.53/x
  3. Step 3: Cross multiply
    14,618.75x = 20,174.00 × 8,331.53
  4. Step 4: Simplify right side
    14,618.75x = 168,080,143.69
  5. Step 5: Solve for x
    x = 168,080,143.69/14,618.75
  6. Step 6: Final answer
    x = 11,497.58

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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.