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Finding the Fourth Proportional to 8,454.74, 12,659.42 and 6,888.33

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Solution

The fourth proportional to 8,454.74, 12,659.42 and 6,888.33 is: 10,314.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,454.74 : 12,659.42 = 6,888.33 : x
  2. Step 2: Convert to fraction form
    8,454.74/12,659.42 = 6,888.33/x
  3. Step 3: Cross multiply
    8,454.74x = 12,659.42 × 6,888.33
  4. Step 4: Simplify right side
    8,454.74x = 87,202,228.13
  5. Step 5: Solve for x
    x = 87,202,228.13/8,454.74
  6. Step 6: Final answer
    x = 10,314.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.