Home / 12,548.45-18,817.92-4,112.99

Finding the Fourth Proportional to 12,548.45, 18,817.92 and 4,112.99

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Solution

The fourth proportional to 12,548.45, 18,817.92 and 4,112.99 is: 6,167.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.45 : 18,817.92 = 4,112.99 : x
  2. Step 2: Convert to fraction form
    12,548.45/18,817.92 = 4,112.99/x
  3. Step 3: Cross multiply
    12,548.45x = 18,817.92 × 4,112.99
  4. Step 4: Simplify right side
    12,548.45x = 77,397,999.11
  5. Step 5: Solve for x
    x = 77,397,999.11/12,548.45
  6. Step 6: Final answer
    x = 6,167.93

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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.