Home / 8,127.77-12,192.08-2,581.55

Finding the Fourth Proportional to 8,127.77, 12,192.08 and 2,581.55

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Solution

The fourth proportional to 8,127.77, 12,192.08 and 2,581.55 is: 3,872.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.77 : 12,192.08 = 2,581.55 : x
  2. Step 2: Convert to fraction form
    8,127.77/12,192.08 = 2,581.55/x
  3. Step 3: Cross multiply
    8,127.77x = 12,192.08 × 2,581.55
  4. Step 4: Simplify right side
    8,127.77x = 31,474,464.12
  5. Step 5: Solve for x
    x = 31,474,464.12/8,127.77
  6. Step 6: Final answer
    x = 3,872.46

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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.