Home / 8,466.31-12,683.28-5,135.58

Finding the Fourth Proportional to 8,466.31, 12,683.28 and 5,135.58

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Solution

The fourth proportional to 8,466.31, 12,683.28 and 5,135.58 is: 7,693.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,466.31 : 12,683.28 = 5,135.58 : x
  2. Step 2: Convert to fraction form
    8,466.31/12,683.28 = 5,135.58/x
  3. Step 3: Cross multiply
    8,466.31x = 12,683.28 × 5,135.58
  4. Step 4: Simplify right side
    8,466.31x = 65,135,999.10
  5. Step 5: Solve for x
    x = 65,135,999.10/8,466.31
  6. Step 6: Final answer
    x = 7,693.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.