Home / 13,340.28-18,410.87-7,372.35

Finding the Fourth Proportional to 13,340.28, 18,410.87 and 7,372.35

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Solution

The fourth proportional to 13,340.28, 18,410.87 and 7,372.35 is: 10,174.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.28 : 18,410.87 = 7,372.35 : x
  2. Step 2: Convert to fraction form
    13,340.28/18,410.87 = 7,372.35/x
  3. Step 3: Cross multiply
    13,340.28x = 18,410.87 × 7,372.35
  4. Step 4: Simplify right side
    13,340.28x = 135,731,377.44
  5. Step 5: Solve for x
    x = 135,731,377.44/13,340.28
  6. Step 6: Final answer
    x = 10,174.55

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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.