Home / 8,302.30-12,457.11-4,405.75

Finding the Fourth Proportional to 8,302.30, 12,457.11 and 4,405.75

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Solution

The fourth proportional to 8,302.30, 12,457.11 and 4,405.75 is: 6,610.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,302.30 : 12,457.11 = 4,405.75 : x
  2. Step 2: Convert to fraction form
    8,302.30/12,457.11 = 4,405.75/x
  3. Step 3: Cross multiply
    8,302.30x = 12,457.11 × 4,405.75
  4. Step 4: Simplify right side
    8,302.30x = 54,882,912.38
  5. Step 5: Solve for x
    x = 54,882,912.38/8,302.30
  6. Step 6: Final answer
    x = 6,610.57

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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.