Home / 14,033.48-20,996.76-12,478.28

Finding the Fourth Proportional to 14,033.48, 20,996.76 and 12,478.28

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Solution

The fourth proportional to 14,033.48, 20,996.76 and 12,478.28 is: 18,669.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,033.48 : 20,996.76 = 12,478.28 : x
  2. Step 2: Convert to fraction form
    14,033.48/20,996.76 = 12,478.28/x
  3. Step 3: Cross multiply
    14,033.48x = 20,996.76 × 12,478.28
  4. Step 4: Simplify right side
    14,033.48x = 262,003,450.37
  5. Step 5: Solve for x
    x = 262,003,450.37/14,033.48
  6. Step 6: Final answer
    x = 18,669.88

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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.