Home / 7,816.68-10,787.06-4,280.22

Finding the Fourth Proportional to 7,816.68, 10,787.06 and 4,280.22

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Solution

The fourth proportional to 7,816.68, 10,787.06 and 4,280.22 is: 5,906.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.68 : 10,787.06 = 4,280.22 : x
  2. Step 2: Convert to fraction form
    7,816.68/10,787.06 = 4,280.22/x
  3. Step 3: Cross multiply
    7,816.68x = 10,787.06 × 4,280.22
  4. Step 4: Simplify right side
    7,816.68x = 46,170,968.55
  5. Step 5: Solve for x
    x = 46,170,968.55/7,816.68
  6. Step 6: Final answer
    x = 5,906.72

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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.