Home / 7,215.28-10,819.08-4,254.96

Finding the Fourth Proportional to 7,215.28, 10,819.08 and 4,254.96

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Solution

The fourth proportional to 7,215.28, 10,819.08 and 4,254.96 is: 6,380.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.28 : 10,819.08 = 4,254.96 : x
  2. Step 2: Convert to fraction form
    7,215.28/10,819.08 = 4,254.96/x
  3. Step 3: Cross multiply
    7,215.28x = 10,819.08 × 4,254.96
  4. Step 4: Simplify right side
    7,215.28x = 46,034,752.64
  5. Step 5: Solve for x
    x = 46,034,752.64/7,215.28
  6. Step 6: Final answer
    x = 6,380.18

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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.