Home / 13,299.77-18,354.36-7,634.48

Finding the Fourth Proportional to 13,299.77, 18,354.36 and 7,634.48

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Solution

The fourth proportional to 13,299.77, 18,354.36 and 7,634.48 is: 10,535.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.77 : 18,354.36 = 7,634.48 : x
  2. Step 2: Convert to fraction form
    13,299.77/18,354.36 = 7,634.48/x
  3. Step 3: Cross multiply
    13,299.77x = 18,354.36 × 7,634.48
  4. Step 4: Simplify right side
    13,299.77x = 140,125,902.56
  5. Step 5: Solve for x
    x = 140,125,902.56/13,299.77
  6. Step 6: Final answer
    x = 10,535.97

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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.