Home / 19,808.26-27,337.53-12,638.37

Finding the Fourth Proportional to 19,808.26, 27,337.53 and 12,638.37

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Solution

The fourth proportional to 19,808.26, 27,337.53 and 12,638.37 is: 17,442.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,808.26 : 27,337.53 = 12,638.37 : x
  2. Step 2: Convert to fraction form
    19,808.26/27,337.53 = 12,638.37/x
  3. Step 3: Cross multiply
    19,808.26x = 27,337.53 × 12,638.37
  4. Step 4: Simplify right side
    19,808.26x = 345,501,819.03
  5. Step 5: Solve for x
    x = 345,501,819.03/19,808.26
  6. Step 6: Final answer
    x = 17,442.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.