Home / 12,551.21-17,321.23-7,514.47

Finding the Fourth Proportional to 12,551.21, 17,321.23 and 7,514.47

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Solution

The fourth proportional to 12,551.21, 17,321.23 and 7,514.47 is: 10,370.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.21 : 17,321.23 = 7,514.47 : x
  2. Step 2: Convert to fraction form
    12,551.21/17,321.23 = 7,514.47/x
  3. Step 3: Cross multiply
    12,551.21x = 17,321.23 × 7,514.47
  4. Step 4: Simplify right side
    12,551.21x = 130,159,863.20
  5. Step 5: Solve for x
    x = 130,159,863.20/12,551.21
  6. Step 6: Final answer
    x = 10,370.30

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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.