Home / 13,743.96-18,967.01-8,435.76

Finding the Fourth Proportional to 13,743.96, 18,967.01 and 8,435.76

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Solution

The fourth proportional to 13,743.96, 18,967.01 and 8,435.76 is: 11,641.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.96 : 18,967.01 = 8,435.76 : x
  2. Step 2: Convert to fraction form
    13,743.96/18,967.01 = 8,435.76/x
  3. Step 3: Cross multiply
    13,743.96x = 18,967.01 × 8,435.76
  4. Step 4: Simplify right side
    13,743.96x = 160,001,102.10
  5. Step 5: Solve for x
    x = 160,001,102.10/13,743.96
  6. Step 6: Final answer
    x = 11,641.56

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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.