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Finding the Fourth Proportional to 12,502.66, 18,751.50 and 3,619.02

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Solution

The fourth proportional to 12,502.66, 18,751.50 and 3,619.02 is: 5,427.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,502.66 : 18,751.50 = 3,619.02 : x
  2. Step 2: Convert to fraction form
    12,502.66/18,751.50 = 3,619.02/x
  3. Step 3: Cross multiply
    12,502.66x = 18,751.50 × 3,619.02
  4. Step 4: Simplify right side
    12,502.66x = 67,862,053.53
  5. Step 5: Solve for x
    x = 67,862,053.53/12,502.66
  6. Step 6: Final answer
    x = 5,427.81

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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.