Home / 12,576.79-17,355.13-6,911.41

Finding the Fourth Proportional to 12,576.79, 17,355.13 and 6,911.41

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Solution

The fourth proportional to 12,576.79, 17,355.13 and 6,911.41 is: 9,537.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.79 : 17,355.13 = 6,911.41 : x
  2. Step 2: Convert to fraction form
    12,576.79/17,355.13 = 6,911.41/x
  3. Step 3: Cross multiply
    12,576.79x = 17,355.13 × 6,911.41
  4. Step 4: Simplify right side
    12,576.79x = 119,948,453.15
  5. Step 5: Solve for x
    x = 119,948,453.15/12,576.79
  6. Step 6: Final answer
    x = 9,537.29

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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.