Home / 14,428.56-19,903.74-11,742.78

Finding the Fourth Proportional to 14,428.56, 19,903.74 and 11,742.78

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Solution

The fourth proportional to 14,428.56, 19,903.74 and 11,742.78 is: 16,198.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,428.56 : 19,903.74 = 11,742.78 : x
  2. Step 2: Convert to fraction form
    14,428.56/19,903.74 = 11,742.78/x
  3. Step 3: Cross multiply
    14,428.56x = 19,903.74 × 11,742.78
  4. Step 4: Simplify right side
    14,428.56x = 233,725,240.00
  5. Step 5: Solve for x
    x = 233,725,240.00/14,428.56
  6. Step 6: Final answer
    x = 16,198.79

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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.