Home / 12,106.08-18,081.24-10,356.96

Finding the Fourth Proportional to 12,106.08, 18,081.24 and 10,356.96

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Solution

The fourth proportional to 12,106.08, 18,081.24 and 10,356.96 is: 15,468.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,106.08 : 18,081.24 = 10,356.96 : x
  2. Step 2: Convert to fraction form
    12,106.08/18,081.24 = 10,356.96/x
  3. Step 3: Cross multiply
    12,106.08x = 18,081.24 × 10,356.96
  4. Step 4: Simplify right side
    12,106.08x = 187,266,679.43
  5. Step 5: Solve for x
    x = 187,266,679.43/12,106.08
  6. Step 6: Final answer
    x = 15,468.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.