Home / 18,116.21-25,002.45-12,066.11

Finding the Fourth Proportional to 18,116.21, 25,002.45 and 12,066.11

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Solution

The fourth proportional to 18,116.21, 25,002.45 and 12,066.11 is: 16,652.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,116.21 : 25,002.45 = 12,066.11 : x
  2. Step 2: Convert to fraction form
    18,116.21/25,002.45 = 12,066.11/x
  3. Step 3: Cross multiply
    18,116.21x = 25,002.45 × 12,066.11
  4. Step 4: Simplify right side
    18,116.21x = 301,682,251.64
  5. Step 5: Solve for x
    x = 301,682,251.64/18,116.21
  6. Step 6: Final answer
    x = 16,652.62

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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.