Home / 19,128.36-26,402.34-12,413.59

Finding the Fourth Proportional to 19,128.36, 26,402.34 and 12,413.59

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Solution

The fourth proportional to 19,128.36, 26,402.34 and 12,413.59 is: 17,134.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128.36 : 26,402.34 = 12,413.59 : x
  2. Step 2: Convert to fraction form
    19,128.36/26,402.34 = 12,413.59/x
  3. Step 3: Cross multiply
    19,128.36x = 26,402.34 × 12,413.59
  4. Step 4: Simplify right side
    19,128.36x = 327,747,804.35
  5. Step 5: Solve for x
    x = 327,747,804.35/19,128.36
  6. Step 6: Final answer
    x = 17,134.13

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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.