Home / 13,478.40-20,226.84-4,713.36

Finding the Fourth Proportional to 13,478.40, 20,226.84 and 4,713.36

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Solution

The fourth proportional to 13,478.40, 20,226.84 and 4,713.36 is: 7,073.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478.40 : 20,226.84 = 4,713.36 : x
  2. Step 2: Convert to fraction form
    13,478.40/20,226.84 = 4,713.36/x
  3. Step 3: Cross multiply
    13,478.40x = 20,226.84 × 4,713.36
  4. Step 4: Simplify right side
    13,478.40x = 95,336,378.58
  5. Step 5: Solve for x
    x = 95,336,378.58/13,478.40
  6. Step 6: Final answer
    x = 7,073.27

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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.