Home / 8,130.23-12,199.83-3,970.26

Finding the Fourth Proportional to 8,130.23, 12,199.83 and 3,970.26

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Solution

The fourth proportional to 8,130.23, 12,199.83 and 3,970.26 is: 5,957.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.23 : 12,199.83 = 3,970.26 : x
  2. Step 2: Convert to fraction form
    8,130.23/12,199.83 = 3,970.26/x
  3. Step 3: Cross multiply
    8,130.23x = 12,199.83 × 3,970.26
  4. Step 4: Simplify right side
    8,130.23x = 48,436,497.06
  5. Step 5: Solve for x
    x = 48,436,497.06/8,130.23
  6. Step 6: Final answer
    x = 5,957.58

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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.