Home / 18,447.21-25,457.04-10,489.44

Finding the Fourth Proportional to 18,447.21, 25,457.04 and 10,489.44

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Solution

The fourth proportional to 18,447.21, 25,457.04 and 10,489.44 is: 14,475.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.21 : 25,457.04 = 10,489.44 : x
  2. Step 2: Convert to fraction form
    18,447.21/25,457.04 = 10,489.44/x
  3. Step 3: Cross multiply
    18,447.21x = 25,457.04 × 10,489.44
  4. Step 4: Simplify right side
    18,447.21x = 267,029,913.93
  5. Step 5: Solve for x
    x = 267,029,913.93/18,447.21
  6. Step 6: Final answer
    x = 14,475.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.