Home / 11,146.74-15,379.47-6,666.54

Finding the Fourth Proportional to 11,146.74, 15,379.47 and 6,666.54

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Solution

The fourth proportional to 11,146.74, 15,379.47 and 6,666.54 is: 9,198.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.74 : 15,379.47 = 6,666.54 : x
  2. Step 2: Convert to fraction form
    11,146.74/15,379.47 = 6,666.54/x
  3. Step 3: Cross multiply
    11,146.74x = 15,379.47 × 6,666.54
  4. Step 4: Simplify right side
    11,146.74x = 102,527,851.93
  5. Step 5: Solve for x
    x = 102,527,851.93/11,146.74
  6. Step 6: Final answer
    x = 9,198.01

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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.