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Finding the Fourth Proportional to 6,479.15, 8,955.02 and 5,711.27

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Solution

The fourth proportional to 6,479.15, 8,955.02 and 5,711.27 is: 7,893.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.15 : 8,955.02 = 5,711.27 : x
  2. Step 2: Convert to fraction form
    6,479.15/8,955.02 = 5,711.27/x
  3. Step 3: Cross multiply
    6,479.15x = 8,955.02 × 5,711.27
  4. Step 4: Simplify right side
    6,479.15x = 51,144,506.58
  5. Step 5: Solve for x
    x = 51,144,506.58/6,479.15
  6. Step 6: Final answer
    x = 7,893.71

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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.