Home / 12,283.80-18,429.28-3,963.64

Finding the Fourth Proportional to 12,283.80, 18,429.28 and 3,963.64

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Solution

The fourth proportional to 12,283.80, 18,429.28 and 3,963.64 is: 5,946.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,283.80 : 18,429.28 = 3,963.64 : x
  2. Step 2: Convert to fraction form
    12,283.80/18,429.28 = 3,963.64/x
  3. Step 3: Cross multiply
    12,283.80x = 18,429.28 × 3,963.64
  4. Step 4: Simplify right side
    12,283.80x = 73,047,031.38
  5. Step 5: Solve for x
    x = 73,047,031.38/12,283.80
  6. Step 6: Final answer
    x = 5,946.62

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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.