Home / 13,666.26-18,850.77-8,621.67

Finding the Fourth Proportional to 13,666.26, 18,850.77 and 8,621.67

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Solution

The fourth proportional to 13,666.26, 18,850.77 and 8,621.67 is: 11,892.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.26 : 18,850.77 = 8,621.67 : x
  2. Step 2: Convert to fraction form
    13,666.26/18,850.77 = 8,621.67/x
  3. Step 3: Cross multiply
    13,666.26x = 18,850.77 × 8,621.67
  4. Step 4: Simplify right side
    13,666.26x = 162,525,118.19
  5. Step 5: Solve for x
    x = 162,525,118.19/13,666.26
  6. Step 6: Final answer
    x = 11,892.44

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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.