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Finding the Fourth Proportional to 19,010.56, 28,517 and 7,323.80

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Solution

The fourth proportional to 19,010.56, 28,517 and 7,323.80 is: 10,986.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,010.56 : 28,517 = 7,323.80 : x
  2. Step 2: Convert to fraction form
    19,010.56/28,517 = 7,323.80/x
  3. Step 3: Cross multiply
    19,010.56x = 28,517 × 7,323.80
  4. Step 4: Simplify right side
    19,010.56x = 208,852,804.60
  5. Step 5: Solve for x
    x = 208,852,804.60/19,010.56
  6. Step 6: Final answer
    x = 10,986.15

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1.5x scale

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.