Home / 13,357.35-18,433.31-7,388.87

Finding the Fourth Proportional to 13,357.35, 18,433.31 and 7,388.87

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Solution

The fourth proportional to 13,357.35, 18,433.31 and 7,388.87 is: 10,196.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,357.35 : 18,433.31 = 7,388.87 : x
  2. Step 2: Convert to fraction form
    13,357.35/18,433.31 = 7,388.87/x
  3. Step 3: Cross multiply
    13,357.35x = 18,433.31 × 7,388.87
  4. Step 4: Simplify right side
    13,357.35x = 136,201,202.15
  5. Step 5: Solve for x
    x = 136,201,202.15/13,357.35
  6. Step 6: Final answer
    x = 10,196.72

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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.