Home / 19,319.18-28,984.26-6,172.58

Finding the Fourth Proportional to 19,319.18, 28,984.26 and 6,172.58

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Solution

The fourth proportional to 19,319.18, 28,984.26 and 6,172.58 is: 9,260.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.18 : 28,984.26 = 6,172.58 : x
  2. Step 2: Convert to fraction form
    19,319.18/28,984.26 = 6,172.58/x
  3. Step 3: Cross multiply
    19,319.18x = 28,984.26 × 6,172.58
  4. Step 4: Simplify right side
    19,319.18x = 178,907,663.59
  5. Step 5: Solve for x
    x = 178,907,663.59/19,319.18
  6. Step 6: Final answer
    x = 9,260.62

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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.