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Finding the Fourth Proportional to 7,018.97, 10,519.65 and 3,509.96

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Solution

The fourth proportional to 7,018.97, 10,519.65 and 3,509.96 is: 5,260.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.97 : 10,519.65 = 3,509.96 : x
  2. Step 2: Convert to fraction form
    7,018.97/10,519.65 = 3,509.96/x
  3. Step 3: Cross multiply
    7,018.97x = 10,519.65 × 3,509.96
  4. Step 4: Simplify right side
    7,018.97x = 36,923,498.12
  5. Step 5: Solve for x
    x = 36,923,498.12/7,018.97
  6. Step 6: Final answer
    x = 5,260.53

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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.