Home / 13,971.45-19,279.82-8,003.51

Finding the Fourth Proportional to 13,971.45, 19,279.82 and 8,003.51

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Solution

The fourth proportional to 13,971.45, 19,279.82 and 8,003.51 is: 11,044.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.45 : 19,279.82 = 8,003.51 : x
  2. Step 2: Convert to fraction form
    13,971.45/19,279.82 = 8,003.51/x
  3. Step 3: Cross multiply
    13,971.45x = 19,279.82 × 8,003.51
  4. Step 4: Simplify right side
    13,971.45x = 154,306,135.77
  5. Step 5: Solve for x
    x = 154,306,135.77/13,971.45
  6. Step 6: Final answer
    x = 11,044.39

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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.