Home / 13,596.28-18,761.66-9,119.22

Finding the Fourth Proportional to 13,596.28, 18,761.66 and 9,119.22

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Solution

The fourth proportional to 13,596.28, 18,761.66 and 9,119.22 is: 12,583.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,596.28 : 18,761.66 = 9,119.22 : x
  2. Step 2: Convert to fraction form
    13,596.28/18,761.66 = 9,119.22/x
  3. Step 3: Cross multiply
    13,596.28x = 18,761.66 × 9,119.22
  4. Step 4: Simplify right side
    13,596.28x = 171,091,705.11
  5. Step 5: Solve for x
    x = 171,091,705.11/13,596.28
  6. Step 6: Final answer
    x = 12,583.71

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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.