Home / 8,416.80-11,613.11-4,877.91

Finding the Fourth Proportional to 8,416.80, 11,613.11 and 4,877.91

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Solution

The fourth proportional to 8,416.80, 11,613.11 and 4,877.91 is: 6,730.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.80 : 11,613.11 = 4,877.91 : x
  2. Step 2: Convert to fraction form
    8,416.80/11,613.11 = 4,877.91/x
  3. Step 3: Cross multiply
    8,416.80x = 11,613.11 × 4,877.91
  4. Step 4: Simplify right side
    8,416.80x = 56,647,681.01
  5. Step 5: Solve for x
    x = 56,647,681.01/8,416.80
  6. Step 6: Final answer
    x = 6,730.31

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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.