Home / 12,729.68-19,097.28-5,233.28

Finding the Fourth Proportional to 12,729.68, 19,097.28 and 5,233.28

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Solution

The fourth proportional to 12,729.68, 19,097.28 and 5,233.28 is: 7,851.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,729.68 : 19,097.28 = 5,233.28 : x
  2. Step 2: Convert to fraction form
    12,729.68/19,097.28 = 5,233.28/x
  3. Step 3: Cross multiply
    12,729.68x = 19,097.28 × 5,233.28
  4. Step 4: Simplify right side
    12,729.68x = 99,941,413.48
  5. Step 5: Solve for x
    x = 99,941,413.48/12,729.68
  6. Step 6: Final answer
    x = 7,851.05

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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.