Home / 13,314.18-18,372.86-7,344.69

Finding the Fourth Proportional to 13,314.18, 18,372.86 and 7,344.69

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Solution

The fourth proportional to 13,314.18, 18,372.86 and 7,344.69 is: 10,135.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.18 : 18,372.86 = 7,344.69 : x
  2. Step 2: Convert to fraction form
    13,314.18/18,372.86 = 7,344.69/x
  3. Step 3: Cross multiply
    13,314.18x = 18,372.86 × 7,344.69
  4. Step 4: Simplify right side
    13,314.18x = 134,942,883.03
  5. Step 5: Solve for x
    x = 134,942,883.03/13,314.18
  6. Step 6: Final answer
    x = 10,135.27

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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.