Home / 7,816.71-10,787.06-4,280.15

Finding the Fourth Proportional to 7,816.71, 10,787.06 and 4,280.15

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Solution

The fourth proportional to 7,816.71, 10,787.06 and 4,280.15 is: 5,906.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.71 : 10,787.06 = 4,280.15 : x
  2. Step 2: Convert to fraction form
    7,816.71/10,787.06 = 4,280.15/x
  3. Step 3: Cross multiply
    7,816.71x = 10,787.06 × 4,280.15
  4. Step 4: Simplify right side
    7,816.71x = 46,170,191.62
  5. Step 5: Solve for x
    x = 46,170,191.62/7,816.71
  6. Step 6: Final answer
    x = 5,906.60

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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.