Home / 19,139.96-26,413.22-10,642.86

Finding the Fourth Proportional to 19,139.96, 26,413.22 and 10,642.86

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Solution

The fourth proportional to 19,139.96, 26,413.22 and 10,642.86 is: 14,687.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139.96 : 26,413.22 = 10,642.86 : x
  2. Step 2: Convert to fraction form
    19,139.96/26,413.22 = 10,642.86/x
  3. Step 3: Cross multiply
    19,139.96x = 26,413.22 × 10,642.86
  4. Step 4: Simplify right side
    19,139.96x = 281,112,229.22
  5. Step 5: Solve for x
    x = 281,112,229.22/19,139.96
  6. Step 6: Final answer
    x = 14,687.19

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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.