Home / 13,110.67-18,099.42-8,884.06

Finding the Fourth Proportional to 13,110.67, 18,099.42 and 8,884.06

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Solution

The fourth proportional to 13,110.67, 18,099.42 and 8,884.06 is: 12,264.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.67 : 18,099.42 = 8,884.06 : x
  2. Step 2: Convert to fraction form
    13,110.67/18,099.42 = 8,884.06/x
  3. Step 3: Cross multiply
    13,110.67x = 18,099.42 × 8,884.06
  4. Step 4: Simplify right side
    13,110.67x = 160,796,431.45
  5. Step 5: Solve for x
    x = 160,796,431.45/13,110.67
  6. Step 6: Final answer
    x = 12,264.55

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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.