Home / 7,789.99-11,680.29-3,630.93

Finding the Fourth Proportional to 7,789.99, 11,680.29 and 3,630.93

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Solution

The fourth proportional to 7,789.99, 11,680.29 and 3,630.93 is: 5,444.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.99 : 11,680.29 = 3,630.93 : x
  2. Step 2: Convert to fraction form
    7,789.99/11,680.29 = 3,630.93/x
  3. Step 3: Cross multiply
    7,789.99x = 11,680.29 × 3,630.93
  4. Step 4: Simplify right side
    7,789.99x = 42,410,340.38
  5. Step 5: Solve for x
    x = 42,410,340.38/7,789.99
  6. Step 6: Final answer
    x = 5,444.21

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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.