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Finding the Fourth Proportional to 13,812, 19,060.77 and 7,524.38

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Solution

The fourth proportional to 13,812, 19,060.77 and 7,524.38 is: 10,383.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812 : 19,060.77 = 7,524.38 : x
  2. Step 2: Convert to fraction form
    13,812/19,060.77 = 7,524.38/x
  3. Step 3: Cross multiply
    13,812x = 19,060.77 × 7,524.38
  4. Step 4: Simplify right side
    13,812x = 143,420,381.27
  5. Step 5: Solve for x
    x = 143,420,381.27/13,812
  6. Step 6: Final answer
    x = 10,383.75

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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.