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Finding the Fourth Proportional to 13,800.62, 19,047.48 and 7,832.84

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Solution

The fourth proportional to 13,800.62, 19,047.48 and 7,832.84 is: 10,810.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800.62 : 19,047.48 = 7,832.84 : x
  2. Step 2: Convert to fraction form
    13,800.62/19,047.48 = 7,832.84/x
  3. Step 3: Cross multiply
    13,800.62x = 19,047.48 × 7,832.84
  4. Step 4: Simplify right side
    13,800.62x = 149,195,863.24
  5. Step 5: Solve for x
    x = 149,195,863.24/13,800.62
  6. Step 6: Final answer
    x = 10,810.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.