Home / 13,637.89-18,824.58-9,922.69

Finding the Fourth Proportional to 13,637.89, 18,824.58 and 9,922.69

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Solution

The fourth proportional to 13,637.89, 18,824.58 and 9,922.69 is: 13,696.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.89 : 18,824.58 = 9,922.69 : x
  2. Step 2: Convert to fraction form
    13,637.89/18,824.58 = 9,922.69/x
  3. Step 3: Cross multiply
    13,637.89x = 18,824.58 × 9,922.69
  4. Step 4: Simplify right side
    13,637.89x = 186,790,471.72
  5. Step 5: Solve for x
    x = 186,790,471.72/13,637.89
  6. Step 6: Final answer
    x = 13,696.43

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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.