Home / 14,367.18-21,550.80-3,978.96

Finding the Fourth Proportional to 14,367.18, 21,550.80 and 3,978.96

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Solution

The fourth proportional to 14,367.18, 21,550.80 and 3,978.96 is: 5,968.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,367.18 : 21,550.80 = 3,978.96 : x
  2. Step 2: Convert to fraction form
    14,367.18/21,550.80 = 3,978.96/x
  3. Step 3: Cross multiply
    14,367.18x = 21,550.80 × 3,978.96
  4. Step 4: Simplify right side
    14,367.18x = 85,749,771.17
  5. Step 5: Solve for x
    x = 85,749,771.17/14,367.18
  6. Step 6: Final answer
    x = 5,968.45

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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.