Home / 19,657.29-27,129.45-11,162.06

Finding the Fourth Proportional to 19,657.29, 27,129.45 and 11,162.06

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Solution

The fourth proportional to 19,657.29, 27,129.45 and 11,162.06 is: 15,404.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,657.29 : 27,129.45 = 11,162.06 : x
  2. Step 2: Convert to fraction form
    19,657.29/27,129.45 = 11,162.06/x
  3. Step 3: Cross multiply
    19,657.29x = 27,129.45 × 11,162.06
  4. Step 4: Simplify right side
    19,657.29x = 302,820,413.02
  5. Step 5: Solve for x
    x = 302,820,413.02/19,657.29
  6. Step 6: Final answer
    x = 15,404.99

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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.