Home / 8,076.71-11,145.75-4,720.04

Finding the Fourth Proportional to 8,076.71, 11,145.75 and 4,720.04

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Solution

The fourth proportional to 8,076.71, 11,145.75 and 4,720.04 is: 6,513.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076.71 : 11,145.75 = 4,720.04 : x
  2. Step 2: Convert to fraction form
    8,076.71/11,145.75 = 4,720.04/x
  3. Step 3: Cross multiply
    8,076.71x = 11,145.75 × 4,720.04
  4. Step 4: Simplify right side
    8,076.71x = 52,608,330.10
  5. Step 5: Solve for x
    x = 52,608,330.10/8,076.71
  6. Step 6: Final answer
    x = 6,513.59

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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.