Home / 11,678.89-16,116.85-6,373.75

Finding the Fourth Proportional to 11,678.89, 16,116.85 and 6,373.75

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Solution

The fourth proportional to 11,678.89, 16,116.85 and 6,373.75 is: 8,795.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.89 : 16,116.85 = 6,373.75 : x
  2. Step 2: Convert to fraction form
    11,678.89/16,116.85 = 6,373.75/x
  3. Step 3: Cross multiply
    11,678.89x = 16,116.85 × 6,373.75
  4. Step 4: Simplify right side
    11,678.89x = 102,724,772.69
  5. Step 5: Solve for x
    x = 102,724,772.69/11,678.89
  6. Step 6: Final answer
    x = 8,795.77

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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.