Home / 12,475.18-17,215.66-6,809.86

Finding the Fourth Proportional to 12,475.18, 17,215.66 and 6,809.86

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Solution

The fourth proportional to 12,475.18, 17,215.66 and 6,809.86 is: 9,397.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.18 : 17,215.66 = 6,809.86 : x
  2. Step 2: Convert to fraction form
    12,475.18/17,215.66 = 6,809.86/x
  3. Step 3: Cross multiply
    12,475.18x = 17,215.66 × 6,809.86
  4. Step 4: Simplify right side
    12,475.18x = 117,236,234.41
  5. Step 5: Solve for x
    x = 117,236,234.41/12,475.18
  6. Step 6: Final answer
    x = 9,397.56

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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.