Home / 13,369.38-20,066.28-7,134.72

Finding the Fourth Proportional to 13,369.38, 20,066.28 and 7,134.72

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Solution

The fourth proportional to 13,369.38, 20,066.28 and 7,134.72 is: 10,708.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.38 : 20,066.28 = 7,134.72 : x
  2. Step 2: Convert to fraction form
    13,369.38/20,066.28 = 7,134.72/x
  3. Step 3: Cross multiply
    13,369.38x = 20,066.28 × 7,134.72
  4. Step 4: Simplify right side
    13,369.38x = 143,167,289.24
  5. Step 5: Solve for x
    x = 143,167,289.24/13,369.38
  6. Step 6: Final answer
    x = 10,708.60

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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.