Home / 7,529.12-11,289.68-4,415.20

Finding the Fourth Proportional to 7,529.12, 11,289.68 and 4,415.20

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Solution

The fourth proportional to 7,529.12, 11,289.68 and 4,415.20 is: 6,620.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,529.12 : 11,289.68 = 4,415.20 : x
  2. Step 2: Convert to fraction form
    7,529.12/11,289.68 = 4,415.20/x
  3. Step 3: Cross multiply
    7,529.12x = 11,289.68 × 4,415.20
  4. Step 4: Simplify right side
    7,529.12x = 49,846,195.14
  5. Step 5: Solve for x
    x = 49,846,195.14/7,529.12
  6. Step 6: Final answer
    x = 6,620.45

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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.