Home / 13,539.40-18,672.26-8,504.08

Finding the Fourth Proportional to 13,539.40, 18,672.26 and 8,504.08

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Solution

The fourth proportional to 13,539.40, 18,672.26 and 8,504.08 is: 11,728.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,539.40 : 18,672.26 = 8,504.08 : x
  2. Step 2: Convert to fraction form
    13,539.40/18,672.26 = 8,504.08/x
  3. Step 3: Cross multiply
    13,539.40x = 18,672.26 × 8,504.08
  4. Step 4: Simplify right side
    13,539.40x = 158,790,392.82
  5. Step 5: Solve for x
    x = 158,790,392.82/13,539.40
  6. Step 6: Final answer
    x = 11,728.02

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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.