Home / 10,801.68-16,188.75-4,872.21

Finding the Fourth Proportional to 10,801.68, 16,188.75 and 4,872.21

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Solution

The fourth proportional to 10,801.68, 16,188.75 and 4,872.21 is: 7,302.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,801.68 : 16,188.75 = 4,872.21 : x
  2. Step 2: Convert to fraction form
    10,801.68/16,188.75 = 4,872.21/x
  3. Step 3: Cross multiply
    10,801.68x = 16,188.75 × 4,872.21
  4. Step 4: Simplify right side
    10,801.68x = 78,874,989.64
  5. Step 5: Solve for x
    x = 78,874,989.64/10,801.68
  6. Step 6: Final answer
    x = 7,302.10

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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.