Home / 13,216.41-18,234.86-8,738.55

Finding the Fourth Proportional to 13,216.41, 18,234.86 and 8,738.55

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Solution

The fourth proportional to 13,216.41, 18,234.86 and 8,738.55 is: 12,056.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.41 : 18,234.86 = 8,738.55 : x
  2. Step 2: Convert to fraction form
    13,216.41/18,234.86 = 8,738.55/x
  3. Step 3: Cross multiply
    13,216.41x = 18,234.86 × 8,738.55
  4. Step 4: Simplify right side
    13,216.41x = 159,346,192.16
  5. Step 5: Solve for x
    x = 159,346,192.16/13,216.41
  6. Step 6: Final answer
    x = 12,056.69

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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.