Home / 13,371.88-20,070.78-6,451.24

Finding the Fourth Proportional to 13,371.88, 20,070.78 and 6,451.24

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Solution

The fourth proportional to 13,371.88, 20,070.78 and 6,451.24 is: 9,683.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.88 : 20,070.78 = 6,451.24 : x
  2. Step 2: Convert to fraction form
    13,371.88/20,070.78 = 6,451.24/x
  3. Step 3: Cross multiply
    13,371.88x = 20,070.78 × 6,451.24
  4. Step 4: Simplify right side
    13,371.88x = 129,481,418.77
  5. Step 5: Solve for x
    x = 129,481,418.77/13,371.88
  6. Step 6: Final answer
    x = 9,683.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.