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Finding the Fourth Proportional to 13,242.96, 19,863.09 and 7,000.56

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Solution

The fourth proportional to 13,242.96, 19,863.09 and 7,000.56 is: 10,500.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.96 : 19,863.09 = 7,000.56 : x
  2. Step 2: Convert to fraction form
    13,242.96/19,863.09 = 7,000.56/x
  3. Step 3: Cross multiply
    13,242.96x = 19,863.09 × 7,000.56
  4. Step 4: Simplify right side
    13,242.96x = 139,052,753.33
  5. Step 5: Solve for x
    x = 139,052,753.33/13,242.96
  6. Step 6: Final answer
    x = 10,500.13

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Double scale
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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.