Home / 13,459.24-20,163.42-7,620.04

Finding the Fourth Proportional to 13,459.24, 20,163.42 and 7,620.04

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Solution

The fourth proportional to 13,459.24, 20,163.42 and 7,620.04 is: 11,415.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.24 : 20,163.42 = 7,620.04 : x
  2. Step 2: Convert to fraction form
    13,459.24/20,163.42 = 7,620.04/x
  3. Step 3: Cross multiply
    13,459.24x = 20,163.42 × 7,620.04
  4. Step 4: Simplify right side
    13,459.24x = 153,646,066.94
  5. Step 5: Solve for x
    x = 153,646,066.94/13,459.24
  6. Step 6: Final answer
    x = 11,415.66

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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.