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Finding the Fourth Proportional to 6,715.02, 9,276.04 and 6,386.96

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Solution

The fourth proportional to 6,715.02, 9,276.04 and 6,386.96 is: 8,822.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,715.02 : 9,276.04 = 6,386.96 : x
  2. Step 2: Convert to fraction form
    6,715.02/9,276.04 = 6,386.96/x
  3. Step 3: Cross multiply
    6,715.02x = 9,276.04 × 6,386.96
  4. Step 4: Simplify right side
    6,715.02x = 59,245,696.44
  5. Step 5: Solve for x
    x = 59,245,696.44/6,715.02
  6. Step 6: Final answer
    x = 8,822.86

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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.