Home / 8,757.90-13,129.45-4,075.49

Finding the Fourth Proportional to 8,757.90, 13,129.45 and 4,075.49

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Solution

The fourth proportional to 8,757.90, 13,129.45 and 4,075.49 is: 6,109.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.90 : 13,129.45 = 4,075.49 : x
  2. Step 2: Convert to fraction form
    8,757.90/13,129.45 = 4,075.49/x
  3. Step 3: Cross multiply
    8,757.90x = 13,129.45 × 4,075.49
  4. Step 4: Simplify right side
    8,757.90x = 53,508,942.18
  5. Step 5: Solve for x
    x = 53,508,942.18/8,757.90
  6. Step 6: Final answer
    x = 6,109.79

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1.5x scale

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.