Home / 11,816.84-16,307.62-6,781.98

Finding the Fourth Proportional to 11,816.84, 16,307.62 and 6,781.98

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Solution

The fourth proportional to 11,816.84, 16,307.62 and 6,781.98 is: 9,359.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.84 : 16,307.62 = 6,781.98 : x
  2. Step 2: Convert to fraction form
    11,816.84/16,307.62 = 6,781.98/x
  3. Step 3: Cross multiply
    11,816.84x = 16,307.62 × 6,781.98
  4. Step 4: Simplify right side
    11,816.84x = 110,597,996.89
  5. Step 5: Solve for x
    x = 110,597,996.89/11,816.84
  6. Step 6: Final answer
    x = 9,359.35

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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.