Home / 13,329.07-18,394.15-7,360.75

Finding the Fourth Proportional to 13,329.07, 18,394.15 and 7,360.75

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Solution

The fourth proportional to 13,329.07, 18,394.15 and 7,360.75 is: 10,157.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.07 : 18,394.15 = 7,360.75 : x
  2. Step 2: Convert to fraction form
    13,329.07/18,394.15 = 7,360.75/x
  3. Step 3: Cross multiply
    13,329.07x = 18,394.15 × 7,360.75
  4. Step 4: Simplify right side
    13,329.07x = 135,394,739.61
  5. Step 5: Solve for x
    x = 135,394,739.61/13,329.07
  6. Step 6: Final answer
    x = 10,157.85

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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.