Home / 8,415.78-11,613.82-4,881.08

Finding the Fourth Proportional to 8,415.78, 11,613.82 and 4,881.08

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Solution

The fourth proportional to 8,415.78, 11,613.82 and 4,881.08 is: 6,735.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415.78 : 11,613.82 = 4,881.08 : x
  2. Step 2: Convert to fraction form
    8,415.78/11,613.82 = 4,881.08/x
  3. Step 3: Cross multiply
    8,415.78x = 11,613.82 × 4,881.08
  4. Step 4: Simplify right side
    8,415.78x = 56,687,984.53
  5. Step 5: Solve for x
    x = 56,687,984.53/8,415.78
  6. Step 6: Final answer
    x = 6,735.92

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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.