Home / 13,725.12-19,020.36-13,462.56

Finding the Fourth Proportional to 13,725.12, 19,020.36 and 13,462.56

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Solution

The fourth proportional to 13,725.12, 19,020.36 and 13,462.56 is: 18,656.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.12 : 19,020.36 = 13,462.56 : x
  2. Step 2: Convert to fraction form
    13,725.12/19,020.36 = 13,462.56/x
  3. Step 3: Cross multiply
    13,725.12x = 19,020.36 × 13,462.56
  4. Step 4: Simplify right side
    13,725.12x = 256,062,737.72
  5. Step 5: Solve for x
    x = 256,062,737.72/13,725.12
  6. Step 6: Final answer
    x = 18,656.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.