Home / 19,103.53-28,657.24-6,620.69

Finding the Fourth Proportional to 19,103.53, 28,657.24 and 6,620.69

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Solution

The fourth proportional to 19,103.53, 28,657.24 and 6,620.69 is: 9,931.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,103.53 : 28,657.24 = 6,620.69 : x
  2. Step 2: Convert to fraction form
    19,103.53/28,657.24 = 6,620.69/x
  3. Step 3: Cross multiply
    19,103.53x = 28,657.24 × 6,620.69
  4. Step 4: Simplify right side
    19,103.53x = 189,730,702.30
  5. Step 5: Solve for x
    x = 189,730,702.30/19,103.53
  6. Step 6: Final answer
    x = 9,931.71

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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.