Home / 13,501.26-18,633.36-7,912.26

Finding the Fourth Proportional to 13,501.26, 18,633.36 and 7,912.26

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Solution

The fourth proportional to 13,501.26, 18,633.36 and 7,912.26 is: 10,919.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,501.26 : 18,633.36 = 7,912.26 : x
  2. Step 2: Convert to fraction form
    13,501.26/18,633.36 = 7,912.26/x
  3. Step 3: Cross multiply
    13,501.26x = 18,633.36 × 7,912.26
  4. Step 4: Simplify right side
    13,501.26x = 147,431,988.99
  5. Step 5: Solve for x
    x = 147,431,988.99/13,501.26
  6. Step 6: Final answer
    x = 10,919.87

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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.