Home / 8,148.53-12,218.45-3,980.27

Finding the Fourth Proportional to 8,148.53, 12,218.45 and 3,980.27

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Solution

The fourth proportional to 8,148.53, 12,218.45 and 3,980.27 is: 5,968.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.53 : 12,218.45 = 3,980.27 : x
  2. Step 2: Convert to fraction form
    8,148.53/12,218.45 = 3,980.27/x
  3. Step 3: Cross multiply
    8,148.53x = 12,218.45 × 3,980.27
  4. Step 4: Simplify right side
    8,148.53x = 48,632,740.63
  5. Step 5: Solve for x
    x = 48,632,740.63/8,148.53
  6. Step 6: Final answer
    x = 5,968.28

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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.