Home / 10,787.80-16,159.02-4,949.32

Finding the Fourth Proportional to 10,787.80, 16,159.02 and 4,949.32

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Solution

The fourth proportional to 10,787.80, 16,159.02 and 4,949.32 is: 7,413.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.80 : 16,159.02 = 4,949.32 : x
  2. Step 2: Convert to fraction form
    10,787.80/16,159.02 = 4,949.32/x
  3. Step 3: Cross multiply
    10,787.80x = 16,159.02 × 4,949.32
  4. Step 4: Simplify right side
    10,787.80x = 79,976,160.87
  5. Step 5: Solve for x
    x = 79,976,160.87/10,787.80
  6. Step 6: Final answer
    x = 7,413.57

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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.