Home / 12,476.72-17,217.24-6,886.64

Finding the Fourth Proportional to 12,476.72, 17,217.24 and 6,886.64

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Solution

The fourth proportional to 12,476.72, 17,217.24 and 6,886.64 is: 9,503.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476.72 : 17,217.24 = 6,886.64 : x
  2. Step 2: Convert to fraction form
    12,476.72/17,217.24 = 6,886.64/x
  3. Step 3: Cross multiply
    12,476.72x = 17,217.24 × 6,886.64
  4. Step 4: Simplify right side
    12,476.72x = 118,568,933.67
  5. Step 5: Solve for x
    x = 118,568,933.67/12,476.72
  6. Step 6: Final answer
    x = 9,503.21

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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.