Home / 13,372.24-18,454.77-7,405.81

Finding the Fourth Proportional to 13,372.24, 18,454.77 and 7,405.81

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Solution

The fourth proportional to 13,372.24, 18,454.77 and 7,405.81 is: 10,220.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.24 : 18,454.77 = 7,405.81 : x
  2. Step 2: Convert to fraction form
    13,372.24/18,454.77 = 7,405.81/x
  3. Step 3: Cross multiply
    13,372.24x = 18,454.77 × 7,405.81
  4. Step 4: Simplify right side
    13,372.24x = 136,672,520.21
  5. Step 5: Solve for x
    x = 136,672,520.21/13,372.24
  6. Step 6: Final answer
    x = 10,220.62

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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.