Home / 13,725.03-18,940.33-7,437.41

Finding the Fourth Proportional to 13,725.03, 18,940.33 and 7,437.41

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Solution

The fourth proportional to 13,725.03, 18,940.33 and 7,437.41 is: 10,263.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.03 : 18,940.33 = 7,437.41 : x
  2. Step 2: Convert to fraction form
    13,725.03/18,940.33 = 7,437.41/x
  3. Step 3: Cross multiply
    13,725.03x = 18,940.33 × 7,437.41
  4. Step 4: Simplify right side
    13,725.03x = 140,866,999.75
  5. Step 5: Solve for x
    x = 140,866,999.75/13,725.03
  6. Step 6: Final answer
    x = 10,263.51

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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.