Home / 9,089.66-12,536.22-6,409.80

Finding the Fourth Proportional to 9,089.66, 12,536.22 and 6,409.80

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Solution

The fourth proportional to 9,089.66, 12,536.22 and 6,409.80 is: 8,840.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,089.66 : 12,536.22 = 6,409.80 : x
  2. Step 2: Convert to fraction form
    9,089.66/12,536.22 = 6,409.80/x
  3. Step 3: Cross multiply
    9,089.66x = 12,536.22 × 6,409.80
  4. Step 4: Simplify right side
    9,089.66x = 80,354,662.96
  5. Step 5: Solve for x
    x = 80,354,662.96/9,089.66
  6. Step 6: Final answer
    x = 8,840.23

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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.