Home / 8,556.21-11,762.23-7,356.78

Finding the Fourth Proportional to 8,556.21, 11,762.23 and 7,356.78

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Solution

The fourth proportional to 8,556.21, 11,762.23 and 7,356.78 is: 10,113.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.21 : 11,762.23 = 7,356.78 : x
  2. Step 2: Convert to fraction form
    8,556.21/11,762.23 = 7,356.78/x
  3. Step 3: Cross multiply
    8,556.21x = 11,762.23 × 7,356.78
  4. Step 4: Simplify right side
    8,556.21x = 86,532,138.42
  5. Step 5: Solve for x
    x = 86,532,138.42/8,556.21
  6. Step 6: Final answer
    x = 10,113.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.