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Finding the Fourth Proportional to 12,887.96, 19,332.11 and 3,653.96

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Solution

The fourth proportional to 12,887.96, 19,332.11 and 3,653.96 is: 5,480.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.96 : 19,332.11 = 3,653.96 : x
  2. Step 2: Convert to fraction form
    12,887.96/19,332.11 = 3,653.96/x
  3. Step 3: Cross multiply
    12,887.96x = 19,332.11 × 3,653.96
  4. Step 4: Simplify right side
    12,887.96x = 70,638,669.13
  5. Step 5: Solve for x
    x = 70,638,669.13/12,887.96
  6. Step 6: Final answer
    x = 5,480.98

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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.