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Finding the Fourth Proportional to 14,660.20, 21,986.07 and 7,159.14

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Solution

The fourth proportional to 14,660.20, 21,986.07 and 7,159.14 is: 10,736.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,660.20 : 21,986.07 = 7,159.14 : x
  2. Step 2: Convert to fraction form
    14,660.20/21,986.07 = 7,159.14/x
  3. Step 3: Cross multiply
    14,660.20x = 21,986.07 × 7,159.14
  4. Step 4: Simplify right side
    14,660.20x = 157,401,353.18
  5. Step 5: Solve for x
    x = 157,401,353.18/14,660.20
  6. Step 6: Final answer
    x = 10,736.64

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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.