Home / 13,825.34-20,637.08-11,863.57

Finding the Fourth Proportional to 13,825.34, 20,637.08 and 11,863.57

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Solution

The fourth proportional to 13,825.34, 20,637.08 and 11,863.57 is: 17,708.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.34 : 20,637.08 = 11,863.57 : x
  2. Step 2: Convert to fraction form
    13,825.34/20,637.08 = 11,863.57/x
  3. Step 3: Cross multiply
    13,825.34x = 20,637.08 × 11,863.57
  4. Step 4: Simplify right side
    13,825.34x = 244,829,489.94
  5. Step 5: Solve for x
    x = 244,829,489.94/13,825.34
  6. Step 6: Final answer
    x = 17,708.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.