Home / 12,495-18,741.87-4,175.88

Finding the Fourth Proportional to 12,495, 18,741.87 and 4,175.88

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Solution

The fourth proportional to 12,495, 18,741.87 and 4,175.88 is: 6,263.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495 : 18,741.87 = 4,175.88 : x
  2. Step 2: Convert to fraction form
    12,495/18,741.87 = 4,175.88/x
  3. Step 3: Cross multiply
    12,495x = 18,741.87 × 4,175.88
  4. Step 4: Simplify right side
    12,495x = 78,263,800.10
  5. Step 5: Solve for x
    x = 78,263,800.10/12,495
  6. Step 6: Final answer
    x = 6,263.61

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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.