Home / 13,645.48-18,821.22-8,056.36

Finding the Fourth Proportional to 13,645.48, 18,821.22 and 8,056.36

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Solution

The fourth proportional to 13,645.48, 18,821.22 and 8,056.36 is: 11,112.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.48 : 18,821.22 = 8,056.36 : x
  2. Step 2: Convert to fraction form
    13,645.48/18,821.22 = 8,056.36/x
  3. Step 3: Cross multiply
    13,645.48x = 18,821.22 × 8,056.36
  4. Step 4: Simplify right side
    13,645.48x = 151,630,523.96
  5. Step 5: Solve for x
    x = 151,630,523.96/13,645.48
  6. Step 6: Final answer
    x = 11,112.14

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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.