Home / 8,172.57-12,256.08-2,907.34

Finding the Fourth Proportional to 8,172.57, 12,256.08 and 2,907.34

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Solution

The fourth proportional to 8,172.57, 12,256.08 and 2,907.34 is: 4,360.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.57 : 12,256.08 = 2,907.34 : x
  2. Step 2: Convert to fraction form
    8,172.57/12,256.08 = 2,907.34/x
  3. Step 3: Cross multiply
    8,172.57x = 12,256.08 × 2,907.34
  4. Step 4: Simplify right side
    8,172.57x = 35,632,591.63
  5. Step 5: Solve for x
    x = 35,632,591.63/8,172.57
  6. Step 6: Final answer
    x = 4,360.03

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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.