Home / 12,982.28-17,916.78-8,266.26

Finding the Fourth Proportional to 12,982.28, 17,916.78 and 8,266.26

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Solution

The fourth proportional to 12,982.28, 17,916.78 and 8,266.26 is: 11,408.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982.28 : 17,916.78 = 8,266.26 : x
  2. Step 2: Convert to fraction form
    12,982.28/17,916.78 = 8,266.26/x
  3. Step 3: Cross multiply
    12,982.28x = 17,916.78 × 8,266.26
  4. Step 4: Simplify right side
    12,982.28x = 148,104,761.84
  5. Step 5: Solve for x
    x = 148,104,761.84/12,982.28
  6. Step 6: Final answer
    x = 11,408.22

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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.