Home / 7,816.83-10,787.94-4,280.55

Finding the Fourth Proportional to 7,816.83, 10,787.94 and 4,280.55

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Solution

The fourth proportional to 7,816.83, 10,787.94 and 4,280.55 is: 5,907.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.83 : 10,787.94 = 4,280.55 : x
  2. Step 2: Convert to fraction form
    7,816.83/10,787.94 = 4,280.55/x
  3. Step 3: Cross multiply
    7,816.83x = 10,787.94 × 4,280.55
  4. Step 4: Simplify right side
    7,816.83x = 46,178,316.57
  5. Step 5: Solve for x
    x = 46,178,316.57/7,816.83
  6. Step 6: Final answer
    x = 5,907.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.