Home / 11,310.80-16,971.86-5,075.27

Finding the Fourth Proportional to 11,310.80, 16,971.86 and 5,075.27

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Solution

The fourth proportional to 11,310.80, 16,971.86 and 5,075.27 is: 7,615.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,310.80 : 16,971.86 = 5,075.27 : x
  2. Step 2: Convert to fraction form
    11,310.80/16,971.86 = 5,075.27/x
  3. Step 3: Cross multiply
    11,310.80x = 16,971.86 × 5,075.27
  4. Step 4: Simplify right side
    11,310.80x = 86,136,827.02
  5. Step 5: Solve for x
    x = 86,136,827.02/11,310.80
  6. Step 6: Final answer
    x = 7,615.45

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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.