Home / 12,453.76-17,184.24-7,147.84

Finding the Fourth Proportional to 12,453.76, 17,184.24 and 7,147.84

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Solution

The fourth proportional to 12,453.76, 17,184.24 and 7,147.84 is: 9,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,453.76 : 17,184.24 = 7,147.84 : x
  2. Step 2: Convert to fraction form
    12,453.76/17,184.24 = 7,147.84/x
  3. Step 3: Cross multiply
    12,453.76x = 17,184.24 × 7,147.84
  4. Step 4: Simplify right side
    12,453.76x = 122,830,198.04
  5. Step 5: Solve for x
    x = 122,830,198.04/12,453.76
  6. Step 6: Final answer
    x = 9,862.90

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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.