Home / 13,330.90-18,396.64-7,362.56

Finding the Fourth Proportional to 13,330.90, 18,396.64 and 7,362.56

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Solution

The fourth proportional to 13,330.90, 18,396.64 and 7,362.56 is: 10,160.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.90 : 18,396.64 = 7,362.56 : x
  2. Step 2: Convert to fraction form
    13,330.90/18,396.64 = 7,362.56/x
  3. Step 3: Cross multiply
    13,330.90x = 18,396.64 × 7,362.56
  4. Step 4: Simplify right side
    13,330.90x = 135,446,379.58
  5. Step 5: Solve for x
    x = 135,446,379.58/13,330.90
  6. Step 6: Final answer
    x = 10,160.34

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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.