Home / 14,418.42-21,627.63-7,847.70

Finding the Fourth Proportional to 14,418.42, 21,627.63 and 7,847.70

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Solution

The fourth proportional to 14,418.42, 21,627.63 and 7,847.70 is: 11,771.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,418.42 : 21,627.63 = 7,847.70 : x
  2. Step 2: Convert to fraction form
    14,418.42/21,627.63 = 7,847.70/x
  3. Step 3: Cross multiply
    14,418.42x = 21,627.63 × 7,847.70
  4. Step 4: Simplify right side
    14,418.42x = 169,727,151.95
  5. Step 5: Solve for x
    x = 169,727,151.95/14,418.42
  6. Step 6: Final answer
    x = 11,771.55

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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.