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Finding the Fourth Proportional to 6,493.78, 9,740.58 and 6,078.70

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Solution

The fourth proportional to 6,493.78, 9,740.58 and 6,078.70 is: 9,117.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,493.78 : 9,740.58 = 6,078.70 : x
  2. Step 2: Convert to fraction form
    6,493.78/9,740.58 = 6,078.70/x
  3. Step 3: Cross multiply
    6,493.78x = 9,740.58 × 6,078.70
  4. Step 4: Simplify right side
    6,493.78x = 59,210,063.65
  5. Step 5: Solve for x
    x = 59,210,063.65/6,493.78
  6. Step 6: Final answer
    x = 9,117.97

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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.