Home / 13,634.32-20,438.52-8,690.08

Finding the Fourth Proportional to 13,634.32, 20,438.52 and 8,690.08

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Solution

The fourth proportional to 13,634.32, 20,438.52 and 8,690.08 is: 13,026.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.32 : 20,438.52 = 8,690.08 : x
  2. Step 2: Convert to fraction form
    13,634.32/20,438.52 = 8,690.08/x
  3. Step 3: Cross multiply
    13,634.32x = 20,438.52 × 8,690.08
  4. Step 4: Simplify right side
    13,634.32x = 177,612,373.88
  5. Step 5: Solve for x
    x = 177,612,373.88/13,634.32
  6. Step 6: Final answer
    x = 13,026.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.