Home / 8,057.63-11,120.75-4,915.64

Finding the Fourth Proportional to 8,057.63, 11,120.75 and 4,915.64

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Solution

The fourth proportional to 8,057.63, 11,120.75 and 4,915.64 is: 6,784.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,057.63 : 11,120.75 = 4,915.64 : x
  2. Step 2: Convert to fraction form
    8,057.63/11,120.75 = 4,915.64/x
  3. Step 3: Cross multiply
    8,057.63x = 11,120.75 × 4,915.64
  4. Step 4: Simplify right side
    8,057.63x = 54,665,523.35
  5. Step 5: Solve for x
    x = 54,665,523.35/8,057.63
  6. Step 6: Final answer
    x = 6,784.32

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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.