Home / 6,128.61-9,179.96-5,086.14

Finding the Fourth Proportional to 6,128.61, 9,179.96 and 5,086.14

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Solution

The fourth proportional to 6,128.61, 9,179.96 and 5,086.14 is: 7,618.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.61 : 9,179.96 = 5,086.14 : x
  2. Step 2: Convert to fraction form
    6,128.61/9,179.96 = 5,086.14/x
  3. Step 3: Cross multiply
    6,128.61x = 9,179.96 × 5,086.14
  4. Step 4: Simplify right side
    6,128.61x = 46,690,536.32
  5. Step 5: Solve for x
    x = 46,690,536.32/6,128.61
  6. Step 6: Final answer
    x = 7,618.45

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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.