Home / 12,121.48-16,725.72-7,084.92

Finding the Fourth Proportional to 12,121.48, 16,725.72 and 7,084.92

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Solution

The fourth proportional to 12,121.48, 16,725.72 and 7,084.92 is: 9,776.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121.48 : 16,725.72 = 7,084.92 : x
  2. Step 2: Convert to fraction form
    12,121.48/16,725.72 = 7,084.92/x
  3. Step 3: Cross multiply
    12,121.48x = 16,725.72 × 7,084.92
  4. Step 4: Simplify right side
    12,121.48x = 118,500,388.14
  5. Step 5: Solve for x
    x = 118,500,388.14/12,121.48
  6. Step 6: Final answer
    x = 9,776.07

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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.