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Finding the Fourth Proportional to 9,879.48, 14,825.08 and 3,643.86

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Solution

The fourth proportional to 9,879.48, 14,825.08 and 3,643.86 is: 5,467.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.48 : 14,825.08 = 3,643.86 : x
  2. Step 2: Convert to fraction form
    9,879.48/14,825.08 = 3,643.86/x
  3. Step 3: Cross multiply
    9,879.48x = 14,825.08 × 3,643.86
  4. Step 4: Simplify right side
    9,879.48x = 54,020,516.01
  5. Step 5: Solve for x
    x = 54,020,516.01/9,879.48
  6. Step 6: Final answer
    x = 5,467.95

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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.