Home / 16,805.05-23,188.85-9,731.41

Finding the Fourth Proportional to 16,805.05, 23,188.85 and 9,731.41

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Solution

The fourth proportional to 16,805.05, 23,188.85 and 9,731.41 is: 13,428.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,805.05 : 23,188.85 = 9,731.41 : x
  2. Step 2: Convert to fraction form
    16,805.05/23,188.85 = 9,731.41/x
  3. Step 3: Cross multiply
    16,805.05x = 23,188.85 × 9,731.41
  4. Step 4: Simplify right side
    16,805.05x = 225,660,136.64
  5. Step 5: Solve for x
    x = 225,660,136.64/16,805.05
  6. Step 6: Final answer
    x = 13,428.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.