Home / 12,127.80-16,736.04-6,823.74

Finding the Fourth Proportional to 12,127.80, 16,736.04 and 6,823.74

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Solution

The fourth proportional to 12,127.80, 16,736.04 and 6,823.74 is: 9,416.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127.80 : 16,736.04 = 6,823.74 : x
  2. Step 2: Convert to fraction form
    12,127.80/16,736.04 = 6,823.74/x
  3. Step 3: Cross multiply
    12,127.80x = 16,736.04 × 6,823.74
  4. Step 4: Simplify right side
    12,127.80x = 114,202,385.59
  5. Step 5: Solve for x
    x = 114,202,385.59/12,127.80
  6. Step 6: Final answer
    x = 9,416.58

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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.