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Finding the Fourth Proportional to 6,787.90, 10,190.51 and 6,718.04

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Solution

The fourth proportional to 6,787.90, 10,190.51 and 6,718.04 is: 10,085.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,787.90 : 10,190.51 = 6,718.04 : x
  2. Step 2: Convert to fraction form
    6,787.90/10,190.51 = 6,718.04/x
  3. Step 3: Cross multiply
    6,787.90x = 10,190.51 × 6,718.04
  4. Step 4: Simplify right side
    6,787.90x = 68,460,253.80
  5. Step 5: Solve for x
    x = 68,460,253.80/6,787.90
  6. Step 6: Final answer
    x = 10,085.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.