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Finding the Fourth Proportional to 6,858.86, 9,455.53 and 4,868.69

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Solution

The fourth proportional to 6,858.86, 9,455.53 and 4,868.69 is: 6,711.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,858.86 : 9,455.53 = 4,868.69 : x
  2. Step 2: Convert to fraction form
    6,858.86/9,455.53 = 4,868.69/x
  3. Step 3: Cross multiply
    6,858.86x = 9,455.53 × 4,868.69
  4. Step 4: Simplify right side
    6,858.86x = 46,036,044.36
  5. Step 5: Solve for x
    x = 46,036,044.36/6,858.86
  6. Step 6: Final answer
    x = 6,711.91

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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.