Home / 11,823.80-16,316.83-6,518.70

Finding the Fourth Proportional to 11,823.80, 16,316.83 and 6,518.70

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Solution

The fourth proportional to 11,823.80, 16,316.83 and 6,518.70 is: 8,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,823.80 : 16,316.83 = 6,518.70 : x
  2. Step 2: Convert to fraction form
    11,823.80/16,316.83 = 6,518.70/x
  3. Step 3: Cross multiply
    11,823.80x = 16,316.83 × 6,518.70
  4. Step 4: Simplify right side
    11,823.80x = 106,364,503.42
  5. Step 5: Solve for x
    x = 106,364,503.42/11,823.80
  6. Step 6: Final answer
    x = 8,995.80

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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.