Home / 8,428.89-11,631.85-4,652.29

Finding the Fourth Proportional to 8,428.89, 11,631.85 and 4,652.29

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Solution

The fourth proportional to 8,428.89, 11,631.85 and 4,652.29 is: 6,420.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.89 : 11,631.85 = 4,652.29 : x
  2. Step 2: Convert to fraction form
    8,428.89/11,631.85 = 4,652.29/x
  3. Step 3: Cross multiply
    8,428.89x = 11,631.85 × 4,652.29
  4. Step 4: Simplify right side
    8,428.89x = 54,114,739.44
  5. Step 5: Solve for x
    x = 54,114,739.44/8,428.89
  6. Step 6: Final answer
    x = 6,420.15

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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.