Home / 8,302.38-12,457.58-4,142.99

Finding the Fourth Proportional to 8,302.38, 12,457.58 and 4,142.99

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Solution

The fourth proportional to 8,302.38, 12,457.58 and 4,142.99 is: 6,216.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,302.38 : 12,457.58 = 4,142.99 : x
  2. Step 2: Convert to fraction form
    8,302.38/12,457.58 = 4,142.99/x
  3. Step 3: Cross multiply
    8,302.38x = 12,457.58 × 4,142.99
  4. Step 4: Simplify right side
    8,302.38x = 51,611,546.36
  5. Step 5: Solve for x
    x = 51,611,546.36/8,302.38
  6. Step 6: Final answer
    x = 6,216.48

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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.