Home / 13,496.60-18,629.52-8,469.20

Finding the Fourth Proportional to 13,496.60, 18,629.52 and 8,469.20

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Solution

The fourth proportional to 13,496.60, 18,629.52 and 8,469.20 is: 11,690.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,496.60 : 18,629.52 = 8,469.20 : x
  2. Step 2: Convert to fraction form
    13,496.60/18,629.52 = 8,469.20/x
  3. Step 3: Cross multiply
    13,496.60x = 18,629.52 × 8,469.20
  4. Step 4: Simplify right side
    13,496.60x = 157,777,130.78
  5. Step 5: Solve for x
    x = 157,777,130.78/13,496.60
  6. Step 6: Final answer
    x = 11,690.14

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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.