Home / 11,140.59-15,374.00-6,665.39

Finding the Fourth Proportional to 11,140.59, 15,374.00 and 6,665.39

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Solution

The fourth proportional to 11,140.59, 15,374.00 and 6,665.39 is: 9,198.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.59 : 15,374.00 = 6,665.39 : x
  2. Step 2: Convert to fraction form
    11,140.59/15,374.00 = 6,665.39/x
  3. Step 3: Cross multiply
    11,140.59x = 15,374.00 × 6,665.39
  4. Step 4: Simplify right side
    11,140.59x = 102,473,760.96
  5. Step 5: Solve for x
    x = 102,473,760.96/11,140.59
  6. Step 6: Final answer
    x = 9,198.23

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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.