Home / 11,731.77-16,186.64-7,542.45

Finding the Fourth Proportional to 11,731.77, 16,186.64 and 7,542.45

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Solution

The fourth proportional to 11,731.77, 16,186.64 and 7,542.45 is: 10,406.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,731.77 : 16,186.64 = 7,542.45 : x
  2. Step 2: Convert to fraction form
    11,731.77/16,186.64 = 7,542.45/x
  3. Step 3: Cross multiply
    11,731.77x = 16,186.64 × 7,542.45
  4. Step 4: Simplify right side
    11,731.77x = 122,086,885.16
  5. Step 5: Solve for x
    x = 122,086,885.16/11,731.77
  6. Step 6: Final answer
    x = 10,406.52

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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.