Home / 8,490.51-12,731.10-2,943.36

Finding the Fourth Proportional to 8,490.51, 12,731.10 and 2,943.36

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Solution

The fourth proportional to 8,490.51, 12,731.10 and 2,943.36 is: 4,413.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490.51 : 12,731.10 = 2,943.36 : x
  2. Step 2: Convert to fraction form
    8,490.51/12,731.10 = 2,943.36/x
  3. Step 3: Cross multiply
    8,490.51x = 12,731.10 × 2,943.36
  4. Step 4: Simplify right side
    8,490.51x = 37,472,210.50
  5. Step 5: Solve for x
    x = 37,472,210.50/8,490.51
  6. Step 6: Final answer
    x = 4,413.42

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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.