Home / 14,005.28-19,211.36-13,713.60

Finding the Fourth Proportional to 14,005.28, 19,211.36 and 13,713.60

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Solution

The fourth proportional to 14,005.28, 19,211.36 and 13,713.60 is: 18,811.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005.28 : 19,211.36 = 13,713.60 : x
  2. Step 2: Convert to fraction form
    14,005.28/19,211.36 = 13,713.60/x
  3. Step 3: Cross multiply
    14,005.28x = 19,211.36 × 13,713.60
  4. Step 4: Simplify right side
    14,005.28x = 263,456,906.50
  5. Step 5: Solve for x
    x = 263,456,906.50/14,005.28
  6. Step 6: Final answer
    x = 18,811.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.