Home / 13,812.75-20,694.56-7,957.26

Finding the Fourth Proportional to 13,812.75, 20,694.56 and 7,957.26

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Solution

The fourth proportional to 13,812.75, 20,694.56 and 7,957.26 is: 11,921.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812.75 : 20,694.56 = 7,957.26 : x
  2. Step 2: Convert to fraction form
    13,812.75/20,694.56 = 7,957.26/x
  3. Step 3: Cross multiply
    13,812.75x = 20,694.56 × 7,957.26
  4. Step 4: Simplify right side
    13,812.75x = 164,671,954.72
  5. Step 5: Solve for x
    x = 164,671,954.72/13,812.75
  6. Step 6: Final answer
    x = 11,921.74

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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.