Home / 13,268.44-18,310.38-7,603.21

Finding the Fourth Proportional to 13,268.44, 18,310.38 and 7,603.21

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Solution

The fourth proportional to 13,268.44, 18,310.38 and 7,603.21 is: 10,492.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.44 : 18,310.38 = 7,603.21 : x
  2. Step 2: Convert to fraction form
    13,268.44/18,310.38 = 7,603.21/x
  3. Step 3: Cross multiply
    13,268.44x = 18,310.38 × 7,603.21
  4. Step 4: Simplify right side
    13,268.44x = 139,217,664.32
  5. Step 5: Solve for x
    x = 139,217,664.32/13,268.44
  6. Step 6: Final answer
    x = 10,492.39

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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.