Home / 12,740.64-17,576.16-8,493.84

Finding the Fourth Proportional to 12,740.64, 17,576.16 and 8,493.84

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Solution

The fourth proportional to 12,740.64, 17,576.16 and 8,493.84 is: 11,717.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.64 : 17,576.16 = 8,493.84 : x
  2. Step 2: Convert to fraction form
    12,740.64/17,576.16 = 8,493.84/x
  3. Step 3: Cross multiply
    12,740.64x = 17,576.16 × 8,493.84
  4. Step 4: Simplify right side
    12,740.64x = 149,289,090.85
  5. Step 5: Solve for x
    x = 149,289,090.85/12,740.64
  6. Step 6: Final answer
    x = 11,717.55

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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.