Home / 11,731.20-16,187.52-7,013.76

Finding the Fourth Proportional to 11,731.20, 16,187.52 and 7,013.76

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Solution

The fourth proportional to 11,731.20, 16,187.52 and 7,013.76 is: 9,678.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,731.20 : 16,187.52 = 7,013.76 : x
  2. Step 2: Convert to fraction form
    11,731.20/16,187.52 = 7,013.76/x
  3. Step 3: Cross multiply
    11,731.20x = 16,187.52 × 7,013.76
  4. Step 4: Simplify right side
    11,731.20x = 113,535,380.28
  5. Step 5: Solve for x
    x = 113,535,380.28/11,731.20
  6. Step 6: Final answer
    x = 9,678.07

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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.