Home / 12,586.44-17,369.38-6,921.80

Finding the Fourth Proportional to 12,586.44, 17,369.38 and 6,921.80

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Solution

The fourth proportional to 12,586.44, 17,369.38 and 6,921.80 is: 9,552.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586.44 : 17,369.38 = 6,921.80 : x
  2. Step 2: Convert to fraction form
    12,586.44/17,369.38 = 6,921.80/x
  3. Step 3: Cross multiply
    12,586.44x = 17,369.38 × 6,921.80
  4. Step 4: Simplify right side
    12,586.44x = 120,227,374.48
  5. Step 5: Solve for x
    x = 120,227,374.48/12,586.44
  6. Step 6: Final answer
    x = 9,552.14

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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.