Home / 8,416.10-12,613.35-6,458.60

Finding the Fourth Proportional to 8,416.10, 12,613.35 and 6,458.60

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Solution

The fourth proportional to 8,416.10, 12,613.35 and 6,458.60 is: 9,679.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.10 : 12,613.35 = 6,458.60 : x
  2. Step 2: Convert to fraction form
    8,416.10/12,613.35 = 6,458.60/x
  3. Step 3: Cross multiply
    8,416.10x = 12,613.35 × 6,458.60
  4. Step 4: Simplify right side
    8,416.10x = 81,464,582.31
  5. Step 5: Solve for x
    x = 81,464,582.31/8,416.10
  6. Step 6: Final answer
    x = 9,679.61

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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.