Home / 14,366.85-21,550.27-3,978.60

Finding the Fourth Proportional to 14,366.85, 21,550.27 and 3,978.60

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Solution

The fourth proportional to 14,366.85, 21,550.27 and 3,978.60 is: 5,967.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,366.85 : 21,550.27 = 3,978.60 : x
  2. Step 2: Convert to fraction form
    14,366.85/21,550.27 = 3,978.60/x
  3. Step 3: Cross multiply
    14,366.85x = 21,550.27 × 3,978.60
  4. Step 4: Simplify right side
    14,366.85x = 85,739,868.01
  5. Step 5: Solve for x
    x = 85,739,868.01/14,366.85
  6. Step 6: Final answer
    x = 5,967.90

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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.