Home / 12,113.84-16,717.80-6,808.64

Finding the Fourth Proportional to 12,113.84, 16,717.80 and 6,808.64

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Solution

The fourth proportional to 12,113.84, 16,717.80 and 6,808.64 is: 9,396.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.84 : 16,717.80 = 6,808.64 : x
  2. Step 2: Convert to fraction form
    12,113.84/16,717.80 = 6,808.64/x
  3. Step 3: Cross multiply
    12,113.84x = 16,717.80 × 6,808.64
  4. Step 4: Simplify right side
    12,113.84x = 113,825,481.79
  5. Step 5: Solve for x
    x = 113,825,481.79/12,113.84
  6. Step 6: Final answer
    x = 9,396.32

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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.