Home / 9,345.87-14,020.20-2,771.28

Finding the Fourth Proportional to 9,345.87, 14,020.20 and 2,771.28

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Solution

The fourth proportional to 9,345.87, 14,020.20 and 2,771.28 is: 4,157.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,345.87 : 14,020.20 = 2,771.28 : x
  2. Step 2: Convert to fraction form
    9,345.87/14,020.20 = 2,771.28/x
  3. Step 3: Cross multiply
    9,345.87x = 14,020.20 × 2,771.28
  4. Step 4: Simplify right side
    9,345.87x = 38,853,899.86
  5. Step 5: Solve for x
    x = 38,853,899.86/9,345.87
  6. Step 6: Final answer
    x = 4,157.33

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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.