Home / 7,145.64-10,716.30-3,445.56

Finding the Fourth Proportional to 7,145.64, 10,716.30 and 3,445.56

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Solution

The fourth proportional to 7,145.64, 10,716.30 and 3,445.56 is: 5,167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.64 : 10,716.30 = 3,445.56 : x
  2. Step 2: Convert to fraction form
    7,145.64/10,716.30 = 3,445.56/x
  3. Step 3: Cross multiply
    7,145.64x = 10,716.30 × 3,445.56
  4. Step 4: Simplify right side
    7,145.64x = 36,923,654.63
  5. Step 5: Solve for x
    x = 36,923,654.63/7,145.64
  6. Step 6: Final answer
    x = 5,167.30

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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.