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Finding the Fourth Proportional to 17,841.78, 26,803.69 and 12,588.89

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Solution

The fourth proportional to 17,841.78, 26,803.69 and 12,588.89 is: 18,912.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,841.78 : 26,803.69 = 12,588.89 : x
  2. Step 2: Convert to fraction form
    17,841.78/26,803.69 = 12,588.89/x
  3. Step 3: Cross multiply
    17,841.78x = 26,803.69 × 12,588.89
  4. Step 4: Simplify right side
    17,841.78x = 337,428,539.51
  5. Step 5: Solve for x
    x = 337,428,539.51/17,841.78
  6. Step 6: Final answer
    x = 18,912.27

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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.