Home / 12,315.75-16,996.16-6,727.11

Finding the Fourth Proportional to 12,315.75, 16,996.16 and 6,727.11

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Solution

The fourth proportional to 12,315.75, 16,996.16 and 6,727.11 is: 9,283.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,315.75 : 16,996.16 = 6,727.11 : x
  2. Step 2: Convert to fraction form
    12,315.75/16,996.16 = 6,727.11/x
  3. Step 3: Cross multiply
    12,315.75x = 16,996.16 × 6,727.11
  4. Step 4: Simplify right side
    12,315.75x = 114,335,004.26
  5. Step 5: Solve for x
    x = 114,335,004.26/12,315.75
  6. Step 6: Final answer
    x = 9,283.64

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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.