Home / 12,586.74-17,370.15-6,921.92

Finding the Fourth Proportional to 12,586.74, 17,370.15 and 6,921.92

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Solution

The fourth proportional to 12,586.74, 17,370.15 and 6,921.92 is: 9,552.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586.74 : 17,370.15 = 6,921.92 : x
  2. Step 2: Convert to fraction form
    12,586.74/17,370.15 = 6,921.92/x
  3. Step 3: Cross multiply
    12,586.74x = 17,370.15 × 6,921.92
  4. Step 4: Simplify right side
    12,586.74x = 120,234,732.88
  5. Step 5: Solve for x
    x = 120,234,732.88/12,586.74
  6. Step 6: Final answer
    x = 9,552.49

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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.