Home / 12,162.24-18,245.28-4,376.64

Finding the Fourth Proportional to 12,162.24, 18,245.28 and 4,376.64

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Solution

The fourth proportional to 12,162.24, 18,245.28 and 4,376.64 is: 6,565.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162.24 : 18,245.28 = 4,376.64 : x
  2. Step 2: Convert to fraction form
    12,162.24/18,245.28 = 4,376.64/x
  3. Step 3: Cross multiply
    12,162.24x = 18,245.28 × 4,376.64
  4. Step 4: Simplify right side
    12,162.24x = 79,853,022.26
  5. Step 5: Solve for x
    x = 79,853,022.26/12,162.24
  6. Step 6: Final answer
    x = 6,565.65

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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.