Home / 7,145.12-10,734.16-6,849.88

Finding the Fourth Proportional to 7,145.12, 10,734.16 and 6,849.88

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Solution

The fourth proportional to 7,145.12, 10,734.16 and 6,849.88 is: 10,290.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.12 : 10,734.16 = 6,849.88 : x
  2. Step 2: Convert to fraction form
    7,145.12/10,734.16 = 6,849.88/x
  3. Step 3: Cross multiply
    7,145.12x = 10,734.16 × 6,849.88
  4. Step 4: Simplify right side
    7,145.12x = 73,527,707.90
  5. Step 5: Solve for x
    x = 73,527,707.90/7,145.12
  6. Step 6: Final answer
    x = 10,290.62

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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.