Home / 8,613.14-12,917.93-3,931.83

Finding the Fourth Proportional to 8,613.14, 12,917.93 and 3,931.83

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Solution

The fourth proportional to 8,613.14, 12,917.93 and 3,931.83 is: 5,896.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613.14 : 12,917.93 = 3,931.83 : x
  2. Step 2: Convert to fraction form
    8,613.14/12,917.93 = 3,931.83/x
  3. Step 3: Cross multiply
    8,613.14x = 12,917.93 × 3,931.83
  4. Step 4: Simplify right side
    8,613.14x = 50,791,085.05
  5. Step 5: Solve for x
    x = 50,791,085.05/8,613.14
  6. Step 6: Final answer
    x = 5,896.93

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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.