Home / 12,235.28-18,346.64-5,985.86

Finding the Fourth Proportional to 12,235.28, 18,346.64 and 5,985.86

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Solution

The fourth proportional to 12,235.28, 18,346.64 and 5,985.86 is: 8,975.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.28 : 18,346.64 = 5,985.86 : x
  2. Step 2: Convert to fraction form
    12,235.28/18,346.64 = 5,985.86/x
  3. Step 3: Cross multiply
    12,235.28x = 18,346.64 × 5,985.86
  4. Step 4: Simplify right side
    12,235.28x = 109,820,296.85
  5. Step 5: Solve for x
    x = 109,820,296.85/12,235.28
  6. Step 6: Final answer
    x = 8,975.71

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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.