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Finding the Fourth Proportional to 17,220.89, 25,806.67 and 9,810.05

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Solution

The fourth proportional to 17,220.89, 25,806.67 and 9,810.05 is: 14,701.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,220.89 : 25,806.67 = 9,810.05 : x
  2. Step 2: Convert to fraction form
    17,220.89/25,806.67 = 9,810.05/x
  3. Step 3: Cross multiply
    17,220.89x = 25,806.67 × 9,810.05
  4. Step 4: Simplify right side
    17,220.89x = 253,164,544.95
  5. Step 5: Solve for x
    x = 253,164,544.95/17,220.89
  6. Step 6: Final answer
    x = 14,701.01

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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.