Home / 8,252.84-12,383.36-3,870.64

Finding the Fourth Proportional to 8,252.84, 12,383.36 and 3,870.64

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Solution

The fourth proportional to 8,252.84, 12,383.36 and 3,870.64 is: 5,807.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,252.84 : 12,383.36 = 3,870.64 : x
  2. Step 2: Convert to fraction form
    8,252.84/12,383.36 = 3,870.64/x
  3. Step 3: Cross multiply
    8,252.84x = 12,383.36 × 3,870.64
  4. Step 4: Simplify right side
    8,252.84x = 47,931,528.55
  5. Step 5: Solve for x
    x = 47,931,528.55/8,252.84
  6. Step 6: Final answer
    x = 5,807.88

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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.