Home / 13,644.72-20,461.68-8,099.51

Finding the Fourth Proportional to 13,644.72, 20,461.68 and 8,099.51

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Solution

The fourth proportional to 13,644.72, 20,461.68 and 8,099.51 is: 12,146.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.72 : 20,461.68 = 8,099.51 : x
  2. Step 2: Convert to fraction form
    13,644.72/20,461.68 = 8,099.51/x
  3. Step 3: Cross multiply
    13,644.72x = 20,461.68 × 8,099.51
  4. Step 4: Simplify right side
    13,644.72x = 165,729,479.47
  5. Step 5: Solve for x
    x = 165,729,479.47/13,644.72
  6. Step 6: Final answer
    x = 12,146.05

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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.