Home / 8,322.57-12,485.70-2,777.76

Finding the Fourth Proportional to 8,322.57, 12,485.70 and 2,777.76

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Solution

The fourth proportional to 8,322.57, 12,485.70 and 2,777.76 is: 4,167.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.57 : 12,485.70 = 2,777.76 : x
  2. Step 2: Convert to fraction form
    8,322.57/12,485.70 = 2,777.76/x
  3. Step 3: Cross multiply
    8,322.57x = 12,485.70 × 2,777.76
  4. Step 4: Simplify right side
    8,322.57x = 34,682,278.03
  5. Step 5: Solve for x
    x = 34,682,278.03/8,322.57
  6. Step 6: Final answer
    x = 4,167.26

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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.