Home / 12,648.48-17,438.68-10,371.43

Finding the Fourth Proportional to 12,648.48, 17,438.68 and 10,371.43

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Solution

The fourth proportional to 12,648.48, 17,438.68 and 10,371.43 is: 14,299.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648.48 : 17,438.68 = 10,371.43 : x
  2. Step 2: Convert to fraction form
    12,648.48/17,438.68 = 10,371.43/x
  3. Step 3: Cross multiply
    12,648.48x = 17,438.68 × 10,371.43
  4. Step 4: Simplify right side
    12,648.48x = 180,864,025.34
  5. Step 5: Solve for x
    x = 180,864,025.34/12,648.48
  6. Step 6: Final answer
    x = 14,299.27

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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.