Home / 15,556.56-21,467.76-8,482.88

Finding the Fourth Proportional to 15,556.56, 21,467.76 and 8,482.88

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Solution

The fourth proportional to 15,556.56, 21,467.76 and 8,482.88 is: 11,706.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556.56 : 21,467.76 = 8,482.88 : x
  2. Step 2: Convert to fraction form
    15,556.56/21,467.76 = 8,482.88/x
  3. Step 3: Cross multiply
    15,556.56x = 21,467.76 × 8,482.88
  4. Step 4: Simplify right side
    15,556.56x = 182,108,431.95
  5. Step 5: Solve for x
    x = 182,108,431.95/15,556.56
  6. Step 6: Final answer
    x = 11,706.21

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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.