Home / 13,772.08-20,630.80-6,366.32

Finding the Fourth Proportional to 13,772.08, 20,630.80 and 6,366.32

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Solution

The fourth proportional to 13,772.08, 20,630.80 and 6,366.32 is: 9,536.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.08 : 20,630.80 = 6,366.32 : x
  2. Step 2: Convert to fraction form
    13,772.08/20,630.80 = 6,366.32/x
  3. Step 3: Cross multiply
    13,772.08x = 20,630.80 × 6,366.32
  4. Step 4: Simplify right side
    13,772.08x = 131,342,274.66
  5. Step 5: Solve for x
    x = 131,342,274.66/13,772.08
  6. Step 6: Final answer
    x = 9,536.85

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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.