Home / 13,299.10-18,351.30-7,632.34

Finding the Fourth Proportional to 13,299.10, 18,351.30 and 7,632.34

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Solution

The fourth proportional to 13,299.10, 18,351.30 and 7,632.34 is: 10,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.10 : 18,351.30 = 7,632.34 : x
  2. Step 2: Convert to fraction form
    13,299.10/18,351.30 = 7,632.34/x
  3. Step 3: Cross multiply
    13,299.10x = 18,351.30 × 7,632.34
  4. Step 4: Simplify right side
    13,299.10x = 140,063,361.04
  5. Step 5: Solve for x
    x = 140,063,361.04/13,299.10
  6. Step 6: Final answer
    x = 10,531.79

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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.