Home / 15,556.31-21,467.81-8,482.85

Finding the Fourth Proportional to 15,556.31, 21,467.81 and 8,482.85

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Solution

The fourth proportional to 15,556.31, 21,467.81 and 8,482.85 is: 11,706.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556.31 : 21,467.81 = 8,482.85 : x
  2. Step 2: Convert to fraction form
    15,556.31/21,467.81 = 8,482.85/x
  3. Step 3: Cross multiply
    15,556.31x = 21,467.81 × 8,482.85
  4. Step 4: Simplify right side
    15,556.31x = 182,108,212.06
  5. Step 5: Solve for x
    x = 182,108,212.06/15,556.31
  6. Step 6: Final answer
    x = 11,706.39

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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.