Home / 13,725.79-18,942.53-8,350.31

Finding the Fourth Proportional to 13,725.79, 18,942.53 and 8,350.31

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Solution

The fourth proportional to 13,725.79, 18,942.53 and 8,350.31 is: 11,524.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.79 : 18,942.53 = 8,350.31 : x
  2. Step 2: Convert to fraction form
    13,725.79/18,942.53 = 8,350.31/x
  3. Step 3: Cross multiply
    13,725.79x = 18,942.53 × 8,350.31
  4. Step 4: Simplify right side
    13,725.79x = 158,175,955.93
  5. Step 5: Solve for x
    x = 158,175,955.93/13,725.79
  6. Step 6: Final answer
    x = 11,524.00

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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.