Home / 13,651.11-18,844.35-9,177.46

Finding the Fourth Proportional to 13,651.11, 18,844.35 and 9,177.46

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Solution

The fourth proportional to 13,651.11, 18,844.35 and 9,177.46 is: 12,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,651.11 : 18,844.35 = 9,177.46 : x
  2. Step 2: Convert to fraction form
    13,651.11/18,844.35 = 9,177.46/x
  3. Step 3: Cross multiply
    13,651.11x = 18,844.35 × 9,177.46
  4. Step 4: Simplify right side
    13,651.11x = 172,943,128.24
  5. Step 5: Solve for x
    x = 172,943,128.24/13,651.11
  6. Step 6: Final answer
    x = 12,668.80

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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.