Home / 12,038.77-18,059.87-3,719.44

Finding the Fourth Proportional to 12,038.77, 18,059.87 and 3,719.44

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Solution

The fourth proportional to 12,038.77, 18,059.87 and 3,719.44 is: 5,579.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,038.77 : 18,059.87 = 3,719.44 : x
  2. Step 2: Convert to fraction form
    12,038.77/18,059.87 = 3,719.44/x
  3. Step 3: Cross multiply
    12,038.77x = 18,059.87 × 3,719.44
  4. Step 4: Simplify right side
    12,038.77x = 67,172,602.87
  5. Step 5: Solve for x
    x = 67,172,602.87/12,038.77
  6. Step 6: Final answer
    x = 5,579.69

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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.