Home / 8,418.21-11,608.72-5,435.58

Finding the Fourth Proportional to 8,418.21, 11,608.72 and 5,435.58

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Solution

The fourth proportional to 8,418.21, 11,608.72 and 5,435.58 is: 7,495.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.21 : 11,608.72 = 5,435.58 : x
  2. Step 2: Convert to fraction form
    8,418.21/11,608.72 = 5,435.58/x
  3. Step 3: Cross multiply
    8,418.21x = 11,608.72 × 5,435.58
  4. Step 4: Simplify right side
    8,418.21x = 63,100,126.26
  5. Step 5: Solve for x
    x = 63,100,126.26/8,418.21
  6. Step 6: Final answer
    x = 7,495.67

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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.