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Finding the Fourth Proportional to 14,322.88, 21,481.54 and 7,205.23

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Solution

The fourth proportional to 14,322.88, 21,481.54 and 7,205.23 is: 10,806.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,322.88 : 21,481.54 = 7,205.23 : x
  2. Step 2: Convert to fraction form
    14,322.88/21,481.54 = 7,205.23/x
  3. Step 3: Cross multiply
    14,322.88x = 21,481.54 × 7,205.23
  4. Step 4: Simplify right side
    14,322.88x = 154,779,436.45
  5. Step 5: Solve for x
    x = 154,779,436.45/14,322.88
  6. Step 6: Final answer
    x = 10,806.45

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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.