Home / 9,100.08-12,556.62-6,120.90

Finding the Fourth Proportional to 9,100.08, 12,556.62 and 6,120.90

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Solution

The fourth proportional to 9,100.08, 12,556.62 and 6,120.90 is: 8,445.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,100.08 : 12,556.62 = 6,120.90 : x
  2. Step 2: Convert to fraction form
    9,100.08/12,556.62 = 6,120.90/x
  3. Step 3: Cross multiply
    9,100.08x = 12,556.62 × 6,120.90
  4. Step 4: Simplify right side
    9,100.08x = 76,857,815.36
  5. Step 5: Solve for x
    x = 76,857,815.36/9,100.08
  6. Step 6: Final answer
    x = 8,445.84

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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.