Home / 16,148.39-24,129.06-12,379.55

Finding the Fourth Proportional to 16,148.39, 24,129.06 and 12,379.55

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Solution

The fourth proportional to 16,148.39, 24,129.06 and 12,379.55 is: 18,497.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,148.39 : 24,129.06 = 12,379.55 : x
  2. Step 2: Convert to fraction form
    16,148.39/24,129.06 = 12,379.55/x
  3. Step 3: Cross multiply
    16,148.39x = 24,129.06 × 12,379.55
  4. Step 4: Simplify right side
    16,148.39x = 298,706,784.08
  5. Step 5: Solve for x
    x = 298,706,784.08/16,148.39
  6. Step 6: Final answer
    x = 18,497.63

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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.