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Finding the Fourth Proportional to 14,610.40, 21,872.40 and 13,055.20

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Solution

The fourth proportional to 14,610.40, 21,872.40 and 13,055.20 is: 19,544.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,610.40 : 21,872.40 = 13,055.20 : x
  2. Step 2: Convert to fraction form
    14,610.40/21,872.40 = 13,055.20/x
  3. Step 3: Cross multiply
    14,610.40x = 21,872.40 × 13,055.20
  4. Step 4: Simplify right side
    14,610.40x = 285,548,556.48
  5. Step 5: Solve for x
    x = 285,548,556.48/14,610.40
  6. Step 6: Final answer
    x = 19,544.20

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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.