Home / 12,576.64-17,355.67-6,911.44

Finding the Fourth Proportional to 12,576.64, 17,355.67 and 6,911.44

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Solution

The fourth proportional to 12,576.64, 17,355.67 and 6,911.44 is: 9,537.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.64 : 17,355.67 = 6,911.44 : x
  2. Step 2: Convert to fraction form
    12,576.64/17,355.67 = 6,911.44/x
  3. Step 3: Cross multiply
    12,576.64x = 17,355.67 × 6,911.44
  4. Step 4: Simplify right side
    12,576.64x = 119,952,671.86
  5. Step 5: Solve for x
    x = 119,952,671.86/12,576.64
  6. Step 6: Final answer
    x = 9,537.74

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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.