Home / 12,106.13-18,154.85-4,313.39

Finding the Fourth Proportional to 12,106.13, 18,154.85 and 4,313.39

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Solution

The fourth proportional to 12,106.13, 18,154.85 and 4,313.39 is: 6,468.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,106.13 : 18,154.85 = 4,313.39 : x
  2. Step 2: Convert to fraction form
    12,106.13/18,154.85 = 4,313.39/x
  3. Step 3: Cross multiply
    12,106.13x = 18,154.85 × 4,313.39
  4. Step 4: Simplify right side
    12,106.13x = 78,308,926.87
  5. Step 5: Solve for x
    x = 78,308,926.87/12,106.13
  6. Step 6: Final answer
    x = 6,468.54

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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.