Home / 12,576.42-17,355.56-6,911.28

Finding the Fourth Proportional to 12,576.42, 17,355.56 and 6,911.28

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Solution

The fourth proportional to 12,576.42, 17,355.56 and 6,911.28 is: 9,537.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.42 : 17,355.56 = 6,911.28 : x
  2. Step 2: Convert to fraction form
    12,576.42/17,355.56 = 6,911.28/x
  3. Step 3: Cross multiply
    12,576.42x = 17,355.56 × 6,911.28
  4. Step 4: Simplify right side
    12,576.42x = 119,949,134.72
  5. Step 5: Solve for x
    x = 119,949,134.72/12,576.42
  6. Step 6: Final answer
    x = 9,537.62

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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.