Home / 19,190.78-28,733.02-9,810.60

Finding the Fourth Proportional to 19,190.78, 28,733.02 and 9,810.60

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Solution

The fourth proportional to 19,190.78, 28,733.02 and 9,810.60 is: 14,688.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,190.78 : 28,733.02 = 9,810.60 : x
  2. Step 2: Convert to fraction form
    19,190.78/28,733.02 = 9,810.60/x
  3. Step 3: Cross multiply
    19,190.78x = 28,733.02 × 9,810.60
  4. Step 4: Simplify right side
    19,190.78x = 281,888,166.01
  5. Step 5: Solve for x
    x = 281,888,166.01/19,190.78
  6. Step 6: Final answer
    x = 14,688.73

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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.