Home / 7,816.67-10,787.13-4,280.07

Finding the Fourth Proportional to 7,816.67, 10,787.13 and 4,280.07

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Solution

The fourth proportional to 7,816.67, 10,787.13 and 4,280.07 is: 5,906.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.67 : 10,787.13 = 4,280.07 : x
  2. Step 2: Convert to fraction form
    7,816.67/10,787.13 = 4,280.07/x
  3. Step 3: Cross multiply
    7,816.67x = 10,787.13 × 4,280.07
  4. Step 4: Simplify right side
    7,816.67x = 46,169,671.50
  5. Step 5: Solve for x
    x = 46,169,671.50/7,816.67
  6. Step 6: Final answer
    x = 5,906.57

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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.