Home / 13,213.01-18,233.37-7,910.75

Finding the Fourth Proportional to 13,213.01, 18,233.37 and 7,910.75

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Solution

The fourth proportional to 13,213.01, 18,233.37 and 7,910.75 is: 10,916.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.01 : 18,233.37 = 7,910.75 : x
  2. Step 2: Convert to fraction form
    13,213.01/18,233.37 = 7,910.75/x
  3. Step 3: Cross multiply
    13,213.01x = 18,233.37 × 7,910.75
  4. Step 4: Simplify right side
    13,213.01x = 144,239,677.31
  5. Step 5: Solve for x
    x = 144,239,677.31/13,213.01
  6. Step 6: Final answer
    x = 10,916.49

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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.