Home / 11,911.20-16,437.72-6,875.62

Finding the Fourth Proportional to 11,911.20, 16,437.72 and 6,875.62

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Solution

The fourth proportional to 11,911.20, 16,437.72 and 6,875.62 is: 9,488.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.20 : 16,437.72 = 6,875.62 : x
  2. Step 2: Convert to fraction form
    11,911.20/16,437.72 = 6,875.62/x
  3. Step 3: Cross multiply
    11,911.20x = 16,437.72 × 6,875.62
  4. Step 4: Simplify right side
    11,911.20x = 113,019,516.39
  5. Step 5: Solve for x
    x = 113,019,516.39/11,911.20
  6. Step 6: Final answer
    x = 9,488.51

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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.