Home / 13,443.03-18,552.96-8,137.80

Finding the Fourth Proportional to 13,443.03, 18,552.96 and 8,137.80

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Solution

The fourth proportional to 13,443.03, 18,552.96 and 8,137.80 is: 11,231.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.03 : 18,552.96 = 8,137.80 : x
  2. Step 2: Convert to fraction form
    13,443.03/18,552.96 = 8,137.80/x
  3. Step 3: Cross multiply
    13,443.03x = 18,552.96 × 8,137.80
  4. Step 4: Simplify right side
    13,443.03x = 150,980,277.89
  5. Step 5: Solve for x
    x = 150,980,277.89/13,443.03
  6. Step 6: Final answer
    x = 11,231.12

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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.