Home / 11,172.63-16,762.60-5,328.48

Finding the Fourth Proportional to 11,172.63, 16,762.60 and 5,328.48

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Solution

The fourth proportional to 11,172.63, 16,762.60 and 5,328.48 is: 7,994.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.63 : 16,762.60 = 5,328.48 : x
  2. Step 2: Convert to fraction form
    11,172.63/16,762.60 = 5,328.48/x
  3. Step 3: Cross multiply
    11,172.63x = 16,762.60 × 5,328.48
  4. Step 4: Simplify right side
    11,172.63x = 89,319,218.40
  5. Step 5: Solve for x
    x = 89,319,218.40/11,172.63
  6. Step 6: Final answer
    x = 7,994.46

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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.