Home / 21,453.84-32,186.22-6,664.86

Finding the Fourth Proportional to 21,453.84, 32,186.22 and 6,664.86

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Solution

The fourth proportional to 21,453.84, 32,186.22 and 6,664.86 is: 9,998.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453.84 : 32,186.22 = 6,664.86 : x
  2. Step 2: Convert to fraction form
    21,453.84/32,186.22 = 6,664.86/x
  3. Step 3: Cross multiply
    21,453.84x = 32,186.22 × 6,664.86
  4. Step 4: Simplify right side
    21,453.84x = 214,516,650.23
  5. Step 5: Solve for x
    x = 214,516,650.23/21,453.84
  6. Step 6: Final answer
    x = 9,998.99

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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.