Home / 13,063.20-19,560-8,911.32

Finding the Fourth Proportional to 13,063.20, 19,560 and 8,911.32

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Solution

The fourth proportional to 13,063.20, 19,560 and 8,911.32 is: 13,343.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,063.20 : 19,560 = 8,911.32 : x
  2. Step 2: Convert to fraction form
    13,063.20/19,560 = 8,911.32/x
  3. Step 3: Cross multiply
    13,063.20x = 19,560 × 8,911.32
  4. Step 4: Simplify right side
    13,063.20x = 174,305,419.20
  5. Step 5: Solve for x
    x = 174,305,419.20/13,063.20
  6. Step 6: Final answer
    x = 13,343.24

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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.