Home / 12,541.20-18,811.96-8,644.56

Finding the Fourth Proportional to 12,541.20, 18,811.96 and 8,644.56

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Solution

The fourth proportional to 12,541.20, 18,811.96 and 8,644.56 is: 12,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,541.20 : 18,811.96 = 8,644.56 : x
  2. Step 2: Convert to fraction form
    12,541.20/18,811.96 = 8,644.56/x
  3. Step 3: Cross multiply
    12,541.20x = 18,811.96 × 8,644.56
  4. Step 4: Simplify right side
    12,541.20x = 162,621,116.94
  5. Step 5: Solve for x
    x = 162,621,116.94/12,541.20
  6. Step 6: Final answer
    x = 12,966.95

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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.