Home / 12,541.72-18,812.94-6,991.96

Finding the Fourth Proportional to 12,541.72, 18,812.94 and 6,991.96

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Solution

The fourth proportional to 12,541.72, 18,812.94 and 6,991.96 is: 10,488.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,541.72 : 18,812.94 = 6,991.96 : x
  2. Step 2: Convert to fraction form
    12,541.72/18,812.94 = 6,991.96/x
  3. Step 3: Cross multiply
    12,541.72x = 18,812.94 × 6,991.96
  4. Step 4: Simplify right side
    12,541.72x = 131,539,323.96
  5. Step 5: Solve for x
    x = 131,539,323.96/12,541.72
  6. Step 6: Final answer
    x = 10,488.14

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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.