Home / 12,802.51-19,206.60-5,413.29

Finding the Fourth Proportional to 12,802.51, 19,206.60 and 5,413.29

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Solution

The fourth proportional to 12,802.51, 19,206.60 and 5,413.29 is: 8,121.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,802.51 : 19,206.60 = 5,413.29 : x
  2. Step 2: Convert to fraction form
    12,802.51/19,206.60 = 5,413.29/x
  3. Step 3: Cross multiply
    12,802.51x = 19,206.60 × 5,413.29
  4. Step 4: Simplify right side
    12,802.51x = 103,970,799.68
  5. Step 5: Solve for x
    x = 103,970,799.68/12,802.51
  6. Step 6: Final answer
    x = 8,121.13

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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.