Home / 11,395.57-15,725.96-6,679.89

Finding the Fourth Proportional to 11,395.57, 15,725.96 and 6,679.89

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Solution

The fourth proportional to 11,395.57, 15,725.96 and 6,679.89 is: 9,218.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,395.57 : 15,725.96 = 6,679.89 : x
  2. Step 2: Convert to fraction form
    11,395.57/15,725.96 = 6,679.89/x
  3. Step 3: Cross multiply
    11,395.57x = 15,725.96 × 6,679.89
  4. Step 4: Simplify right side
    11,395.57x = 105,047,682.94
  5. Step 5: Solve for x
    x = 105,047,682.94/11,395.57
  6. Step 6: Final answer
    x = 9,218.29

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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.