Home / 9,270.80-12,787.12-5,735.68

Finding the Fourth Proportional to 9,270.80, 12,787.12 and 5,735.68

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Solution

The fourth proportional to 9,270.80, 12,787.12 and 5,735.68 is: 7,911.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,270.80 : 12,787.12 = 5,735.68 : x
  2. Step 2: Convert to fraction form
    9,270.80/12,787.12 = 5,735.68/x
  3. Step 3: Cross multiply
    9,270.80x = 12,787.12 × 5,735.68
  4. Step 4: Simplify right side
    9,270.80x = 73,342,828.44
  5. Step 5: Solve for x
    x = 73,342,828.44/9,270.80
  6. Step 6: Final answer
    x = 7,911.16

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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.