Home / 9,787.62-13,508.79-5,810.94

Finding the Fourth Proportional to 9,787.62, 13,508.79 and 5,810.94

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Solution

The fourth proportional to 9,787.62, 13,508.79 and 5,810.94 is: 8,020.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,787.62 : 13,508.79 = 5,810.94 : x
  2. Step 2: Convert to fraction form
    9,787.62/13,508.79 = 5,810.94/x
  3. Step 3: Cross multiply
    9,787.62x = 13,508.79 × 5,810.94
  4. Step 4: Simplify right side
    9,787.62x = 78,498,768.16
  5. Step 5: Solve for x
    x = 78,498,768.16/9,787.62
  6. Step 6: Final answer
    x = 8,020.21

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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.