Home / 15,888.04-21,951.94-12,556.44

Finding the Fourth Proportional to 15,888.04, 21,951.94 and 12,556.44

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Solution

The fourth proportional to 15,888.04, 21,951.94 and 12,556.44 is: 17,348.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,888.04 : 21,951.94 = 12,556.44 : x
  2. Step 2: Convert to fraction form
    15,888.04/21,951.94 = 12,556.44/x
  3. Step 3: Cross multiply
    15,888.04x = 21,951.94 × 12,556.44
  4. Step 4: Simplify right side
    15,888.04x = 275,638,217.49
  5. Step 5: Solve for x
    x = 275,638,217.49/15,888.04
  6. Step 6: Final answer
    x = 17,348.79

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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.