Home / 13,725.56-18,927.38-12,208.32

Finding the Fourth Proportional to 13,725.56, 18,927.38 and 12,208.32

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Solution

The fourth proportional to 13,725.56, 18,927.38 and 12,208.32 is: 16,835.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.56 : 18,927.38 = 12,208.32 : x
  2. Step 2: Convert to fraction form
    13,725.56/18,927.38 = 12,208.32/x
  3. Step 3: Cross multiply
    13,725.56x = 18,927.38 × 12,208.32
  4. Step 4: Simplify right side
    13,725.56x = 231,071,511.80
  5. Step 5: Solve for x
    x = 231,071,511.80/13,725.56
  6. Step 6: Final answer
    x = 16,835.12

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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.