Home / 12,457.43-18,682.96-3,690.29

Finding the Fourth Proportional to 12,457.43, 18,682.96 and 3,690.29

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Solution

The fourth proportional to 12,457.43, 18,682.96 and 3,690.29 is: 5,534.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.43 : 18,682.96 = 3,690.29 : x
  2. Step 2: Convert to fraction form
    12,457.43/18,682.96 = 3,690.29/x
  3. Step 3: Cross multiply
    12,457.43x = 18,682.96 × 3,690.29
  4. Step 4: Simplify right side
    12,457.43x = 68,945,522.01
  5. Step 5: Solve for x
    x = 68,945,522.01/12,457.43
  6. Step 6: Final answer
    x = 5,534.49

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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.