Home / 8,427.89-11,630.48-4,651.29

Finding the Fourth Proportional to 8,427.89, 11,630.48 and 4,651.29

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Solution

The fourth proportional to 8,427.89, 11,630.48 and 4,651.29 is: 6,418.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.89 : 11,630.48 = 4,651.29 : x
  2. Step 2: Convert to fraction form
    8,427.89/11,630.48 = 4,651.29/x
  3. Step 3: Cross multiply
    8,427.89x = 11,630.48 × 4,651.29
  4. Step 4: Simplify right side
    8,427.89x = 54,096,712.06
  5. Step 5: Solve for x
    x = 54,096,712.06/8,427.89
  6. Step 6: Final answer
    x = 6,418.77

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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.