Home / 13,499.28-18,628.92-7,449.84

Finding the Fourth Proportional to 13,499.28, 18,628.92 and 7,449.84

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Solution

The fourth proportional to 13,499.28, 18,628.92 and 7,449.84 is: 10,280.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,499.28 : 18,628.92 = 7,449.84 : x
  2. Step 2: Convert to fraction form
    13,499.28/18,628.92 = 7,449.84/x
  3. Step 3: Cross multiply
    13,499.28x = 18,628.92 × 7,449.84
  4. Step 4: Simplify right side
    13,499.28x = 138,782,473.37
  5. Step 5: Solve for x
    x = 138,782,473.37/13,499.28
  6. Step 6: Final answer
    x = 10,280.73

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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.