Home / 8,645.64-12,973.50-3,450.12

Finding the Fourth Proportional to 8,645.64, 12,973.50 and 3,450.12

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Solution

The fourth proportional to 8,645.64, 12,973.50 and 3,450.12 is: 5,177.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.64 : 12,973.50 = 3,450.12 : x
  2. Step 2: Convert to fraction form
    8,645.64/12,973.50 = 3,450.12/x
  3. Step 3: Cross multiply
    8,645.64x = 12,973.50 × 3,450.12
  4. Step 4: Simplify right side
    8,645.64x = 44,760,131.82
  5. Step 5: Solve for x
    x = 44,760,131.82/8,645.64
  6. Step 6: Final answer
    x = 5,177.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.