Home / 18,723.22-25,845.59-12,760.92

Finding the Fourth Proportional to 18,723.22, 25,845.59 and 12,760.92

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Solution

The fourth proportional to 18,723.22, 25,845.59 and 12,760.92 is: 17,615.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.22 : 25,845.59 = 12,760.92 : x
  2. Step 2: Convert to fraction form
    18,723.22/25,845.59 = 12,760.92/x
  3. Step 3: Cross multiply
    18,723.22x = 25,845.59 × 12,760.92
  4. Step 4: Simplify right side
    18,723.22x = 329,813,506.34
  5. Step 5: Solve for x
    x = 329,813,506.34/18,723.22
  6. Step 6: Final answer
    x = 17,615.21

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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.