Home / 13,641.28-20,466.24-4,876

Finding the Fourth Proportional to 13,641.28, 20,466.24 and 4,876

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Solution

The fourth proportional to 13,641.28, 20,466.24 and 4,876 is: 7,315.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,641.28 : 20,466.24 = 4,876 : x
  2. Step 2: Convert to fraction form
    13,641.28/20,466.24 = 4,876/x
  3. Step 3: Cross multiply
    13,641.28x = 20,466.24 × 4,876
  4. Step 4: Simplify right side
    13,641.28x = 99,793,386.24
  5. Step 5: Solve for x
    x = 99,793,386.24/13,641.28
  6. Step 6: Final answer
    x = 7,315.54

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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.