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Finding the Fourth Proportional to 12,493.29, 18,739.93 and 5,101.23

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Solution

The fourth proportional to 12,493.29, 18,739.93 and 5,101.23 is: 7,651.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493.29 : 18,739.93 = 5,101.23 : x
  2. Step 2: Convert to fraction form
    12,493.29/18,739.93 = 5,101.23/x
  3. Step 3: Cross multiply
    12,493.29x = 18,739.93 × 5,101.23
  4. Step 4: Simplify right side
    12,493.29x = 95,596,586.66
  5. Step 5: Solve for x
    x = 95,596,586.66/12,493.29
  6. Step 6: Final answer
    x = 7,651.84

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Similar ratio
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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.