Home / 13,589.11-18,749.42-7,845.15

Finding the Fourth Proportional to 13,589.11, 18,749.42 and 7,845.15

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Solution

The fourth proportional to 13,589.11, 18,749.42 and 7,845.15 is: 10,824.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.11 : 18,749.42 = 7,845.15 : x
  2. Step 2: Convert to fraction form
    13,589.11/18,749.42 = 7,845.15/x
  3. Step 3: Cross multiply
    13,589.11x = 18,749.42 × 7,845.15
  4. Step 4: Simplify right side
    13,589.11x = 147,091,973.09
  5. Step 5: Solve for x
    x = 147,091,973.09/13,589.11
  6. Step 6: Final answer
    x = 10,824.26

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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.