Home / 12,072.80-16,668.24-10,517.60

Finding the Fourth Proportional to 12,072.80, 16,668.24 and 10,517.60

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Solution

The fourth proportional to 12,072.80, 16,668.24 and 10,517.60 is: 14,521.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.80 : 16,668.24 = 10,517.60 : x
  2. Step 2: Convert to fraction form
    12,072.80/16,668.24 = 10,517.60/x
  3. Step 3: Cross multiply
    12,072.80x = 16,668.24 × 10,517.60
  4. Step 4: Simplify right side
    12,072.80x = 175,309,881.02
  5. Step 5: Solve for x
    x = 175,309,881.02/12,072.80
  6. Step 6: Final answer
    x = 14,521.06

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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.