Home / 19,590.58-29,379.57-6,439.87

Finding the Fourth Proportional to 19,590.58, 29,379.57 and 6,439.87

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Solution

The fourth proportional to 19,590.58, 29,379.57 and 6,439.87 is: 9,657.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,590.58 : 29,379.57 = 6,439.87 : x
  2. Step 2: Convert to fraction form
    19,590.58/29,379.57 = 6,439.87/x
  3. Step 3: Cross multiply
    19,590.58x = 29,379.57 × 6,439.87
  4. Step 4: Simplify right side
    19,590.58x = 189,200,611.46
  5. Step 5: Solve for x
    x = 189,200,611.46/19,590.58
  6. Step 6: Final answer
    x = 9,657.73

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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.