Home / 12,355.86-18,536.08-4,351.44

Finding the Fourth Proportional to 12,355.86, 18,536.08 and 4,351.44

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Solution

The fourth proportional to 12,355.86, 18,536.08 and 4,351.44 is: 6,527.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.86 : 18,536.08 = 4,351.44 : x
  2. Step 2: Convert to fraction form
    12,355.86/18,536.08 = 4,351.44/x
  3. Step 3: Cross multiply
    12,355.86x = 18,536.08 × 4,351.44
  4. Step 4: Simplify right side
    12,355.86x = 80,658,639.96
  5. Step 5: Solve for x
    x = 80,658,639.96/12,355.86
  6. Step 6: Final answer
    x = 6,527.97

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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.