Home / 13,106.45-19,659.55-5,313.41

Finding the Fourth Proportional to 13,106.45, 19,659.55 and 5,313.41

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Solution

The fourth proportional to 13,106.45, 19,659.55 and 5,313.41 is: 7,970.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106.45 : 19,659.55 = 5,313.41 : x
  2. Step 2: Convert to fraction form
    13,106.45/19,659.55 = 5,313.41/x
  3. Step 3: Cross multiply
    13,106.45x = 19,659.55 × 5,313.41
  4. Step 4: Simplify right side
    13,106.45x = 104,459,137.98
  5. Step 5: Solve for x
    x = 104,459,137.98/13,106.45
  6. Step 6: Final answer
    x = 7,970.06

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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.