Home / 13,480.85-18,598.09-8,166.44

Finding the Fourth Proportional to 13,480.85, 18,598.09 and 8,166.44

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Solution

The fourth proportional to 13,480.85, 18,598.09 and 8,166.44 is: 11,266.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.85 : 18,598.09 = 8,166.44 : x
  2. Step 2: Convert to fraction form
    13,480.85/18,598.09 = 8,166.44/x
  3. Step 3: Cross multiply
    13,480.85x = 18,598.09 × 8,166.44
  4. Step 4: Simplify right side
    13,480.85x = 151,880,145.27
  5. Step 5: Solve for x
    x = 151,880,145.27/13,480.85
  6. Step 6: Final answer
    x = 11,266.36

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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.