Home / 15,556.80-23,276.88-8,636.16

Finding the Fourth Proportional to 15,556.80, 23,276.88 and 8,636.16

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Solution

The fourth proportional to 15,556.80, 23,276.88 and 8,636.16 is: 12,921.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556.80 : 23,276.88 = 8,636.16 : x
  2. Step 2: Convert to fraction form
    15,556.80/23,276.88 = 8,636.16/x
  3. Step 3: Cross multiply
    15,556.80x = 23,276.88 × 8,636.16
  4. Step 4: Simplify right side
    15,556.80x = 201,022,859.98
  5. Step 5: Solve for x
    x = 201,022,859.98/15,556.80
  6. Step 6: Final answer
    x = 12,921.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.