Home / 13,334.22-18,395.10-8,620.02

Finding the Fourth Proportional to 13,334.22, 18,395.10 and 8,620.02

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Solution

The fourth proportional to 13,334.22, 18,395.10 and 8,620.02 is: 11,891.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,334.22 : 18,395.10 = 8,620.02 : x
  2. Step 2: Convert to fraction form
    13,334.22/18,395.10 = 8,620.02/x
  3. Step 3: Cross multiply
    13,334.22x = 18,395.10 × 8,620.02
  4. Step 4: Simplify right side
    13,334.22x = 158,566,129.90
  5. Step 5: Solve for x
    x = 158,566,129.90/13,334.22
  6. Step 6: Final answer
    x = 11,891.67

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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.