Home / 6,787.86-9,378.90-4,895.70

Finding the Fourth Proportional to 6,787.86, 9,378.90 and 4,895.70

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Solution

The fourth proportional to 6,787.86, 9,378.90 and 4,895.70 is: 6,764.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,787.86 : 9,378.90 = 4,895.70 : x
  2. Step 2: Convert to fraction form
    6,787.86/9,378.90 = 4,895.70/x
  3. Step 3: Cross multiply
    6,787.86x = 9,378.90 × 4,895.70
  4. Step 4: Simplify right side
    6,787.86x = 45,916,280.73
  5. Step 5: Solve for x
    x = 45,916,280.73/6,787.86
  6. Step 6: Final answer
    x = 6,764.47

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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.