Home / 12,113.14-18,171.30-4,214.80

Finding the Fourth Proportional to 12,113.14, 18,171.30 and 4,214.80

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Solution

The fourth proportional to 12,113.14, 18,171.30 and 4,214.80 is: 6,322.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.14 : 18,171.30 = 4,214.80 : x
  2. Step 2: Convert to fraction form
    12,113.14/18,171.30 = 4,214.80/x
  3. Step 3: Cross multiply
    12,113.14x = 18,171.30 × 4,214.80
  4. Step 4: Simplify right side
    12,113.14x = 76,588,395.24
  5. Step 5: Solve for x
    x = 76,588,395.24/12,113.14
  6. Step 6: Final answer
    x = 6,322.75

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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.