Home / 13,170.55-18,170.28-8,126.02

Finding the Fourth Proportional to 13,170.55, 18,170.28 and 8,126.02

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Solution

The fourth proportional to 13,170.55, 18,170.28 and 8,126.02 is: 11,210.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.55 : 18,170.28 = 8,126.02 : x
  2. Step 2: Convert to fraction form
    13,170.55/18,170.28 = 8,126.02/x
  3. Step 3: Cross multiply
    13,170.55x = 18,170.28 × 8,126.02
  4. Step 4: Simplify right side
    13,170.55x = 147,652,155.36
  5. Step 5: Solve for x
    x = 147,652,155.36/13,170.55
  6. Step 6: Final answer
    x = 11,210.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.