Home / 8,622.90-11,899.44-5,435.55

Finding the Fourth Proportional to 8,622.90, 11,899.44 and 5,435.55

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Solution

The fourth proportional to 8,622.90, 11,899.44 and 5,435.55 is: 7,500.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.90 : 11,899.44 = 5,435.55 : x
  2. Step 2: Convert to fraction form
    8,622.90/11,899.44 = 5,435.55/x
  3. Step 3: Cross multiply
    8,622.90x = 11,899.44 × 5,435.55
  4. Step 4: Simplify right side
    8,622.90x = 64,680,001.09
  5. Step 5: Solve for x
    x = 64,680,001.09/8,622.90
  6. Step 6: Final answer
    x = 7,500.96

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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.