Home / 13,090.44-18,063.12-8,850.72

Finding the Fourth Proportional to 13,090.44, 18,063.12 and 8,850.72

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Solution

The fourth proportional to 13,090.44, 18,063.12 and 8,850.72 is: 12,212.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.44 : 18,063.12 = 8,850.72 : x
  2. Step 2: Convert to fraction form
    13,090.44/18,063.12 = 8,850.72/x
  3. Step 3: Cross multiply
    13,090.44x = 18,063.12 × 8,850.72
  4. Step 4: Simplify right side
    13,090.44x = 159,871,617.45
  5. Step 5: Solve for x
    x = 159,871,617.45/13,090.44
  6. Step 6: Final answer
    x = 12,212.85

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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.