Home / 8,068.26-11,139.06-5,278.62

Finding the Fourth Proportional to 8,068.26, 11,139.06 and 5,278.62

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Solution

The fourth proportional to 8,068.26, 11,139.06 and 5,278.62 is: 7,287.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,068.26 : 11,139.06 = 5,278.62 : x
  2. Step 2: Convert to fraction form
    8,068.26/11,139.06 = 5,278.62/x
  3. Step 3: Cross multiply
    8,068.26x = 11,139.06 × 5,278.62
  4. Step 4: Simplify right side
    8,068.26x = 58,798,864.90
  5. Step 5: Solve for x
    x = 58,798,864.90/8,068.26
  6. Step 6: Final answer
    x = 7,287.68

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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.