Home / 8,130.16-12,195.05-3,747.62

Finding the Fourth Proportional to 8,130.16, 12,195.05 and 3,747.62

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Solution

The fourth proportional to 8,130.16, 12,195.05 and 3,747.62 is: 5,621.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.16 : 12,195.05 = 3,747.62 : x
  2. Step 2: Convert to fraction form
    8,130.16/12,195.05 = 3,747.62/x
  3. Step 3: Cross multiply
    8,130.16x = 12,195.05 × 3,747.62
  4. Step 4: Simplify right side
    8,130.16x = 45,702,374.88
  5. Step 5: Solve for x
    x = 45,702,374.88/8,130.16
  6. Step 6: Final answer
    x = 5,621.34

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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.