Home / 13,284.30-18,327.96-8,571.72

Finding the Fourth Proportional to 13,284.30, 18,327.96 and 8,571.72

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Solution

The fourth proportional to 13,284.30, 18,327.96 and 8,571.72 is: 11,826.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,284.30 : 18,327.96 = 8,571.72 : x
  2. Step 2: Convert to fraction form
    13,284.30/18,327.96 = 8,571.72/x
  3. Step 3: Cross multiply
    13,284.30x = 18,327.96 × 8,571.72
  4. Step 4: Simplify right side
    13,284.30x = 157,102,141.29
  5. Step 5: Solve for x
    x = 157,102,141.29/13,284.30
  6. Step 6: Final answer
    x = 11,826.15

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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.