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Finding the Fourth Proportional to 13,242.65, 19,863.92 and 4,483.61

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Solution

The fourth proportional to 13,242.65, 19,863.92 and 4,483.61 is: 6,725.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.65 : 19,863.92 = 4,483.61 : x
  2. Step 2: Convert to fraction form
    13,242.65/19,863.92 = 4,483.61/x
  3. Step 3: Cross multiply
    13,242.65x = 19,863.92 × 4,483.61
  4. Step 4: Simplify right side
    13,242.65x = 89,062,047.93
  5. Step 5: Solve for x
    x = 89,062,047.93/13,242.65
  6. Step 6: Final answer
    x = 6,725.39

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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.