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Finding the Fourth Proportional to 7,016.86, 9,725.08 and 6,885.64

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Solution

The fourth proportional to 7,016.86, 9,725.08 and 6,885.64 is: 9,543.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,016.86 : 9,725.08 = 6,885.64 : x
  2. Step 2: Convert to fraction form
    7,016.86/9,725.08 = 6,885.64/x
  3. Step 3: Cross multiply
    7,016.86x = 9,725.08 × 6,885.64
  4. Step 4: Simplify right side
    7,016.86x = 66,963,399.85
  5. Step 5: Solve for x
    x = 66,963,399.85/7,016.86
  6. Step 6: Final answer
    x = 9,543.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.