Home / 7,684.15-11,518.03-5,486.22

Finding the Fourth Proportional to 7,684.15, 11,518.03 and 5,486.22

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Solution

The fourth proportional to 7,684.15, 11,518.03 and 5,486.22 is: 8,223.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,684.15 : 11,518.03 = 5,486.22 : x
  2. Step 2: Convert to fraction form
    7,684.15/11,518.03 = 5,486.22/x
  3. Step 3: Cross multiply
    7,684.15x = 11,518.03 × 5,486.22
  4. Step 4: Simplify right side
    7,684.15x = 63,190,446.55
  5. Step 5: Solve for x
    x = 63,190,446.55/7,684.15
  6. Step 6: Final answer
    x = 8,223.48

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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.