Home / 19,319.61-28,983.20-6,172.77

Finding the Fourth Proportional to 19,319.61, 28,983.20 and 6,172.77

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Solution

The fourth proportional to 19,319.61, 28,983.20 and 6,172.77 is: 9,260.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.61 : 28,983.20 = 6,172.77 : x
  2. Step 2: Convert to fraction form
    19,319.61/28,983.20 = 6,172.77/x
  3. Step 3: Cross multiply
    19,319.61x = 28,983.20 × 6,172.77
  4. Step 4: Simplify right side
    19,319.61x = 178,906,596.60
  5. Step 5: Solve for x
    x = 178,906,596.60/19,319.61
  6. Step 6: Final answer
    x = 9,260.36

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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.