Home / 13,410.22-18,509.69-8,371.41

Finding the Fourth Proportional to 13,410.22, 18,509.69 and 8,371.41

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Solution

The fourth proportional to 13,410.22, 18,509.69 and 8,371.41 is: 11,554.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.22 : 18,509.69 = 8,371.41 : x
  2. Step 2: Convert to fraction form
    13,410.22/18,509.69 = 8,371.41/x
  3. Step 3: Cross multiply
    13,410.22x = 18,509.69 × 8,371.41
  4. Step 4: Simplify right side
    13,410.22x = 154,952,203.96
  5. Step 5: Solve for x
    x = 154,952,203.96/13,410.22
  6. Step 6: Final answer
    x = 11,554.78

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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.