Home / 13,268.28-18,309.76-7,299.90

Finding the Fourth Proportional to 13,268.28, 18,309.76 and 7,299.90

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Solution

The fourth proportional to 13,268.28, 18,309.76 and 7,299.90 is: 10,073.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.28 : 18,309.76 = 7,299.90 : x
  2. Step 2: Convert to fraction form
    13,268.28/18,309.76 = 7,299.90/x
  3. Step 3: Cross multiply
    13,268.28x = 18,309.76 × 7,299.90
  4. Step 4: Simplify right side
    13,268.28x = 133,659,417.02
  5. Step 5: Solve for x
    x = 133,659,417.02/13,268.28
  6. Step 6: Final answer
    x = 10,073.61

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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.