Home / 19,150.40-28,741.80-8,636.60

Finding the Fourth Proportional to 19,150.40, 28,741.80 and 8,636.60

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Solution

The fourth proportional to 19,150.40, 28,741.80 and 8,636.60 is: 12,962.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,150.40 : 28,741.80 = 8,636.60 : x
  2. Step 2: Convert to fraction form
    19,150.40/28,741.80 = 8,636.60/x
  3. Step 3: Cross multiply
    19,150.40x = 28,741.80 × 8,636.60
  4. Step 4: Simplify right side
    19,150.40x = 248,231,429.88
  5. Step 5: Solve for x
    x = 248,231,429.88/19,150.40
  6. Step 6: Final answer
    x = 12,962.21

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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.