Home / 13,395.28-18,446.50-12,539.52

Finding the Fourth Proportional to 13,395.28, 18,446.50 and 12,539.52

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Solution

The fourth proportional to 13,395.28, 18,446.50 and 12,539.52 is: 17,268.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.28 : 18,446.50 = 12,539.52 : x
  2. Step 2: Convert to fraction form
    13,395.28/18,446.50 = 12,539.52/x
  3. Step 3: Cross multiply
    13,395.28x = 18,446.50 × 12,539.52
  4. Step 4: Simplify right side
    13,395.28x = 231,310,255.68
  5. Step 5: Solve for x
    x = 231,310,255.68/13,395.28
  6. Step 6: Final answer
    x = 17,268.04

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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.