Home / 12,474.75-17,215.21-6,809.63

Finding the Fourth Proportional to 12,474.75, 17,215.21 and 6,809.63

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Solution

The fourth proportional to 12,474.75, 17,215.21 and 6,809.63 is: 9,397.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.75 : 17,215.21 = 6,809.63 : x
  2. Step 2: Convert to fraction form
    12,474.75/17,215.21 = 6,809.63/x
  3. Step 3: Cross multiply
    12,474.75x = 17,215.21 × 6,809.63
  4. Step 4: Simplify right side
    12,474.75x = 117,229,132.91
  5. Step 5: Solve for x
    x = 117,229,132.91/12,474.75
  6. Step 6: Final answer
    x = 9,397.32

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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.