Home / 12,639.63-18,959.41-5,244.27

Finding the Fourth Proportional to 12,639.63, 18,959.41 and 5,244.27

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Solution

The fourth proportional to 12,639.63, 18,959.41 and 5,244.27 is: 7,866.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,639.63 : 18,959.41 = 5,244.27 : x
  2. Step 2: Convert to fraction form
    12,639.63/18,959.41 = 5,244.27/x
  3. Step 3: Cross multiply
    12,639.63x = 18,959.41 × 5,244.27
  4. Step 4: Simplify right side
    12,639.63x = 99,428,265.08
  5. Step 5: Solve for x
    x = 99,428,265.08/12,639.63
  6. Step 6: Final answer
    x = 7,866.39

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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.