Home / 13,340.28-18,409.50-7,371.96

Finding the Fourth Proportional to 13,340.28, 18,409.50 and 7,371.96

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Solution

The fourth proportional to 13,340.28, 18,409.50 and 7,371.96 is: 10,173.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.28 : 18,409.50 = 7,371.96 : x
  2. Step 2: Convert to fraction form
    13,340.28/18,409.50 = 7,371.96/x
  3. Step 3: Cross multiply
    13,340.28x = 18,409.50 × 7,371.96
  4. Step 4: Simplify right side
    13,340.28x = 135,714,097.62
  5. Step 5: Solve for x
    x = 135,714,097.62/13,340.28
  6. Step 6: Final answer
    x = 10,173.26

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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.