Home / 8,126.25-12,189.81-2,580.03

Finding the Fourth Proportional to 8,126.25, 12,189.81 and 2,580.03

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Solution

The fourth proportional to 8,126.25, 12,189.81 and 2,580.03 is: 3,870.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.25 : 12,189.81 = 2,580.03 : x
  2. Step 2: Convert to fraction form
    8,126.25/12,189.81 = 2,580.03/x
  3. Step 3: Cross multiply
    8,126.25x = 12,189.81 × 2,580.03
  4. Step 4: Simplify right side
    8,126.25x = 31,450,075.49
  5. Step 5: Solve for x
    x = 31,450,075.49/8,126.25
  6. Step 6: Final answer
    x = 3,870.18

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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.