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Finding the Fourth Proportional to 6,872.98, 9,476.40 and 5,808.87

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Solution

The fourth proportional to 6,872.98, 9,476.40 and 5,808.87 is: 8,009.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.98 : 9,476.40 = 5,808.87 : x
  2. Step 2: Convert to fraction form
    6,872.98/9,476.40 = 5,808.87/x
  3. Step 3: Cross multiply
    6,872.98x = 9,476.40 × 5,808.87
  4. Step 4: Simplify right side
    6,872.98x = 55,047,175.67
  5. Step 5: Solve for x
    x = 55,047,175.67/6,872.98
  6. Step 6: Final answer
    x = 8,009.22

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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.