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Finding the Fourth Proportional to 14,619, 21,928.20 and 5,851.56

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Solution

The fourth proportional to 14,619, 21,928.20 and 5,851.56 is: 8,777.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,619 : 21,928.20 = 5,851.56 : x
  2. Step 2: Convert to fraction form
    14,619/21,928.20 = 5,851.56/x
  3. Step 3: Cross multiply
    14,619x = 21,928.20 × 5,851.56
  4. Step 4: Simplify right side
    14,619x = 128,314,177.99
  5. Step 5: Solve for x
    x = 128,314,177.99/14,619
  6. Step 6: Final answer
    x = 8,777.22

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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.