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Finding the Fourth Proportional to 6,855.90, 9,444.93 and 5,653.05

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Solution

The fourth proportional to 6,855.90, 9,444.93 and 5,653.05 is: 7,787.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,855.90 : 9,444.93 = 5,653.05 : x
  2. Step 2: Convert to fraction form
    6,855.90/9,444.93 = 5,653.05/x
  3. Step 3: Cross multiply
    6,855.90x = 9,444.93 × 5,653.05
  4. Step 4: Simplify right side
    6,855.90x = 53,392,661.54
  5. Step 5: Solve for x
    x = 53,392,661.54/6,855.90
  6. Step 6: Final answer
    x = 7,787.84

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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.