Home / 14,409.46-19,884.72-8,121.88

Finding the Fourth Proportional to 14,409.46, 19,884.72 and 8,121.88

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Solution

The fourth proportional to 14,409.46, 19,884.72 and 8,121.88 is: 11,208.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,409.46 : 19,884.72 = 8,121.88 : x
  2. Step 2: Convert to fraction form
    14,409.46/19,884.72 = 8,121.88/x
  3. Step 3: Cross multiply
    14,409.46x = 19,884.72 × 8,121.88
  4. Step 4: Simplify right side
    14,409.46x = 161,501,309.67
  5. Step 5: Solve for x
    x = 161,501,309.67/14,409.46
  6. Step 6: Final answer
    x = 11,208.01

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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.