Home / 7,855.28-10,829.12-6,247.83

Finding the Fourth Proportional to 7,855.28, 10,829.12 and 6,247.83

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Solution

The fourth proportional to 7,855.28, 10,829.12 and 6,247.83 is: 8,613.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.28 : 10,829.12 = 6,247.83 : x
  2. Step 2: Convert to fraction form
    7,855.28/10,829.12 = 6,247.83/x
  3. Step 3: Cross multiply
    7,855.28x = 10,829.12 × 6,247.83
  4. Step 4: Simplify right side
    7,855.28x = 67,658,500.81
  5. Step 5: Solve for x
    x = 67,658,500.81/7,855.28
  6. Step 6: Final answer
    x = 8,613.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.