Home / 19,413.56-29,123.76-12,845.12

Finding the Fourth Proportional to 19,413.56, 29,123.76 and 12,845.12

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Solution

The fourth proportional to 19,413.56, 29,123.76 and 12,845.12 is: 19,269.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,413.56 : 29,123.76 = 12,845.12 : x
  2. Step 2: Convert to fraction form
    19,413.56/29,123.76 = 12,845.12/x
  3. Step 3: Cross multiply
    19,413.56x = 29,123.76 × 12,845.12
  4. Step 4: Simplify right side
    19,413.56x = 374,098,192.05
  5. Step 5: Solve for x
    x = 374,098,192.05/19,413.56
  6. Step 6: Final answer
    x = 19,269.94

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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.