Home / 13,439.28-18,546.12-7,470.93

Finding the Fourth Proportional to 13,439.28, 18,546.12 and 7,470.93

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Solution

The fourth proportional to 13,439.28, 18,546.12 and 7,470.93 is: 10,309.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.28 : 18,546.12 = 7,470.93 : x
  2. Step 2: Convert to fraction form
    13,439.28/18,546.12 = 7,470.93/x
  3. Step 3: Cross multiply
    13,439.28x = 18,546.12 × 7,470.93
  4. Step 4: Simplify right side
    13,439.28x = 138,556,764.29
  5. Step 5: Solve for x
    x = 138,556,764.29/13,439.28
  6. Step 6: Final answer
    x = 10,309.84

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.