Home / 13,523.22-18,685.89-10,406.34

Finding the Fourth Proportional to 13,523.22, 18,685.89 and 10,406.34

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Solution

The fourth proportional to 13,523.22, 18,685.89 and 10,406.34 is: 14,379.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.22 : 18,685.89 = 10,406.34 : x
  2. Step 2: Convert to fraction form
    13,523.22/18,685.89 = 10,406.34/x
  3. Step 3: Cross multiply
    13,523.22x = 18,685.89 × 10,406.34
  4. Step 4: Simplify right side
    13,523.22x = 194,451,724.54
  5. Step 5: Solve for x
    x = 194,451,724.54/13,523.22
  6. Step 6: Final answer
    x = 14,379.10

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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.