Home / 8,305.53-12,457.07-2,758.75

Finding the Fourth Proportional to 8,305.53, 12,457.07 and 2,758.75

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Solution

The fourth proportional to 8,305.53, 12,457.07 and 2,758.75 is: 4,137.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305.53 : 12,457.07 = 2,758.75 : x
  2. Step 2: Convert to fraction form
    8,305.53/12,457.07 = 2,758.75/x
  3. Step 3: Cross multiply
    8,305.53x = 12,457.07 × 2,758.75
  4. Step 4: Simplify right side
    8,305.53x = 34,365,941.86
  5. Step 5: Solve for x
    x = 34,365,941.86/8,305.53
  6. Step 6: Final answer
    x = 4,137.72

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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.