Home / 7,628.76-11,443.14-3,730.43

Finding the Fourth Proportional to 7,628.76, 11,443.14 and 3,730.43

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Solution

The fourth proportional to 7,628.76, 11,443.14 and 3,730.43 is: 5,595.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,628.76 : 11,443.14 = 3,730.43 : x
  2. Step 2: Convert to fraction form
    7,628.76/11,443.14 = 3,730.43/x
  3. Step 3: Cross multiply
    7,628.76x = 11,443.14 × 3,730.43
  4. Step 4: Simplify right side
    7,628.76x = 42,687,813.44
  5. Step 5: Solve for x
    x = 42,687,813.44/7,628.76
  6. Step 6: Final answer
    x = 5,595.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.