Home / 12,457.43-18,682.30-4,135.79

Finding the Fourth Proportional to 12,457.43, 18,682.30 and 4,135.79

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Solution

The fourth proportional to 12,457.43, 18,682.30 and 4,135.79 is: 6,202.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.43 : 18,682.30 = 4,135.79 : x
  2. Step 2: Convert to fraction form
    12,457.43/18,682.30 = 4,135.79/x
  3. Step 3: Cross multiply
    12,457.43x = 18,682.30 × 4,135.79
  4. Step 4: Simplify right side
    12,457.43x = 77,266,098.13
  5. Step 5: Solve for x
    x = 77,266,098.13/12,457.43
  6. Step 6: Final answer
    x = 6,202.41

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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.