Home / 8,556.10-11,812.97-7,658.28

Finding the Fourth Proportional to 8,556.10, 11,812.97 and 7,658.28

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Solution

The fourth proportional to 8,556.10, 11,812.97 and 7,658.28 is: 10,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.10 : 11,812.97 = 7,658.28 : x
  2. Step 2: Convert to fraction form
    8,556.10/11,812.97 = 7,658.28/x
  3. Step 3: Cross multiply
    8,556.10x = 11,812.97 × 7,658.28
  4. Step 4: Simplify right side
    8,556.10x = 90,467,031.89
  5. Step 5: Solve for x
    x = 90,467,031.89/8,556.10
  6. Step 6: Final answer
    x = 10,573.40

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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.