Home / 12,270.32-18,413.06-5,345.36

Finding the Fourth Proportional to 12,270.32, 18,413.06 and 5,345.36

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Solution

The fourth proportional to 12,270.32, 18,413.06 and 5,345.36 is: 8,021.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.32 : 18,413.06 = 5,345.36 : x
  2. Step 2: Convert to fraction form
    12,270.32/18,413.06 = 5,345.36/x
  3. Step 3: Cross multiply
    12,270.32x = 18,413.06 × 5,345.36
  4. Step 4: Simplify right side
    12,270.32x = 98,424,434.40
  5. Step 5: Solve for x
    x = 98,424,434.40/12,270.32
  6. Step 6: Final answer
    x = 8,021.34

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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.