Home / 13,272.20-19,907.10-4,507.40

Finding the Fourth Proportional to 13,272.20, 19,907.10 and 4,507.40

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Solution

The fourth proportional to 13,272.20, 19,907.10 and 4,507.40 is: 6,760.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.20 : 19,907.10 = 4,507.40 : x
  2. Step 2: Convert to fraction form
    13,272.20/19,907.10 = 4,507.40/x
  3. Step 3: Cross multiply
    13,272.20x = 19,907.10 × 4,507.40
  4. Step 4: Simplify right side
    13,272.20x = 89,729,262.54
  5. Step 5: Solve for x
    x = 89,729,262.54/13,272.20
  6. Step 6: Final answer
    x = 6,760.69

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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.