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Finding the Fourth Proportional to 8,157.04, 11,256.78 and 4,799.86

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Solution

The fourth proportional to 8,157.04, 11,256.78 and 4,799.86 is: 6,623.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.04 : 11,256.78 = 4,799.86 : x
  2. Step 2: Convert to fraction form
    8,157.04/11,256.78 = 4,799.86/x
  3. Step 3: Cross multiply
    8,157.04x = 11,256.78 × 4,799.86
  4. Step 4: Simplify right side
    8,157.04x = 54,030,968.05
  5. Step 5: Solve for x
    x = 54,030,968.05/8,157.04
  6. Step 6: Final answer
    x = 6,623.84

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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.