Home / 14,367.12-21,550.95-3,978.78

Finding the Fourth Proportional to 14,367.12, 21,550.95 and 3,978.78

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Solution

The fourth proportional to 14,367.12, 21,550.95 and 3,978.78 is: 5,968.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,367.12 : 21,550.95 = 3,978.78 : x
  2. Step 2: Convert to fraction form
    14,367.12/21,550.95 = 3,978.78/x
  3. Step 3: Cross multiply
    14,367.12x = 21,550.95 × 3,978.78
  4. Step 4: Simplify right side
    14,367.12x = 85,746,488.84
  5. Step 5: Solve for x
    x = 85,746,488.84/14,367.12
  6. Step 6: Final answer
    x = 5,968.24

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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.