Home / 8,428.88-11,626.44-5,116.88

Finding the Fourth Proportional to 8,428.88, 11,626.44 and 5,116.88

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Solution

The fourth proportional to 8,428.88, 11,626.44 and 5,116.88 is: 7,058.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.88 : 11,626.44 = 5,116.88 : x
  2. Step 2: Convert to fraction form
    8,428.88/11,626.44 = 5,116.88/x
  3. Step 3: Cross multiply
    8,428.88x = 11,626.44 × 5,116.88
  4. Step 4: Simplify right side
    8,428.88x = 59,491,098.31
  5. Step 5: Solve for x
    x = 59,491,098.31/8,428.88
  6. Step 6: Final answer
    x = 7,058.01

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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.