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Finding the Fourth Proportional to 17,220.97, 25,806.81 and 9,810.12

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Solution

The fourth proportional to 17,220.97, 25,806.81 and 9,810.12 is: 14,701.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,220.97 : 25,806.81 = 9,810.12 : x
  2. Step 2: Convert to fraction form
    17,220.97/25,806.81 = 9,810.12/x
  3. Step 3: Cross multiply
    17,220.97x = 25,806.81 × 9,810.12
  4. Step 4: Simplify right side
    17,220.97x = 253,167,902.92
  5. Step 5: Solve for x
    x = 253,167,902.92/17,220.97
  6. Step 6: Final answer
    x = 14,701.14

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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.