Home / 8,068.64-11,136.96-5,679.14

Finding the Fourth Proportional to 8,068.64, 11,136.96 and 5,679.14

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Solution

The fourth proportional to 8,068.64, 11,136.96 and 5,679.14 is: 7,838.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,068.64 : 11,136.96 = 5,679.14 : x
  2. Step 2: Convert to fraction form
    8,068.64/11,136.96 = 5,679.14/x
  3. Step 3: Cross multiply
    8,068.64x = 11,136.96 × 5,679.14
  4. Step 4: Simplify right side
    8,068.64x = 63,248,326.62
  5. Step 5: Solve for x
    x = 63,248,326.62/8,068.64
  6. Step 6: Final answer
    x = 7,838.78

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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.