Home / 19,861.60-27,413.73-11,368.62

Finding the Fourth Proportional to 19,861.60, 27,413.73 and 11,368.62

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Solution

The fourth proportional to 19,861.60, 27,413.73 and 11,368.62 is: 15,691.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.60 : 27,413.73 = 11,368.62 : x
  2. Step 2: Convert to fraction form
    19,861.60/27,413.73 = 11,368.62/x
  3. Step 3: Cross multiply
    19,861.60x = 27,413.73 × 11,368.62
  4. Step 4: Simplify right side
    19,861.60x = 311,656,279.15
  5. Step 5: Solve for x
    x = 311,656,279.15/19,861.60
  6. Step 6: Final answer
    x = 15,691.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.