Home / 12,339.57-18,511.52-4,018.71

Finding the Fourth Proportional to 12,339.57, 18,511.52 and 4,018.71

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Solution

The fourth proportional to 12,339.57, 18,511.52 and 4,018.71 is: 6,028.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.57 : 18,511.52 = 4,018.71 : x
  2. Step 2: Convert to fraction form
    12,339.57/18,511.52 = 4,018.71/x
  3. Step 3: Cross multiply
    12,339.57x = 18,511.52 × 4,018.71
  4. Step 4: Simplify right side
    12,339.57x = 74,392,410.45
  5. Step 5: Solve for x
    x = 74,392,410.45/12,339.57
  6. Step 6: Final answer
    x = 6,028.77

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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.