Home / 13,644.99-20,424.21-8,953.89

Finding the Fourth Proportional to 13,644.99, 20,424.21 and 8,953.89

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Solution

The fourth proportional to 13,644.99, 20,424.21 and 8,953.89 is: 13,402.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.99 : 20,424.21 = 8,953.89 : x
  2. Step 2: Convert to fraction form
    13,644.99/20,424.21 = 8,953.89/x
  3. Step 3: Cross multiply
    13,644.99x = 20,424.21 × 8,953.89
  4. Step 4: Simplify right side
    13,644.99x = 182,876,129.68
  5. Step 5: Solve for x
    x = 182,876,129.68/13,644.99
  6. Step 6: Final answer
    x = 13,402.44

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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.