Home / 14,229.69-19,637.60-8,181.89

Finding the Fourth Proportional to 14,229.69, 19,637.60 and 8,181.89

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Solution

The fourth proportional to 14,229.69, 19,637.60 and 8,181.89 is: 11,291.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,229.69 : 19,637.60 = 8,181.89 : x
  2. Step 2: Convert to fraction form
    14,229.69/19,637.60 = 8,181.89/x
  3. Step 3: Cross multiply
    14,229.69x = 19,637.60 × 8,181.89
  4. Step 4: Simplify right side
    14,229.69x = 160,672,683.06
  5. Step 5: Solve for x
    x = 160,672,683.06/14,229.69
  6. Step 6: Final answer
    x = 11,291.37

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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.