Home / 13,268.40-18,311.16-7,604.90

Finding the Fourth Proportional to 13,268.40, 18,311.16 and 7,604.90

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Solution

The fourth proportional to 13,268.40, 18,311.16 and 7,604.90 is: 10,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.40 : 18,311.16 = 7,604.90 : x
  2. Step 2: Convert to fraction form
    13,268.40/18,311.16 = 7,604.90/x
  3. Step 3: Cross multiply
    13,268.40x = 18,311.16 × 7,604.90
  4. Step 4: Simplify right side
    13,268.40x = 139,254,540.68
  5. Step 5: Solve for x
    x = 139,254,540.68/13,268.40
  6. Step 6: Final answer
    x = 10,495.20

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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.