Home / 13,314.78-18,372.42-7,346.70

Finding the Fourth Proportional to 13,314.78, 18,372.42 and 7,346.70

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Solution

The fourth proportional to 13,314.78, 18,372.42 and 7,346.70 is: 10,137.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.78 : 18,372.42 = 7,346.70 : x
  2. Step 2: Convert to fraction form
    13,314.78/18,372.42 = 7,346.70/x
  3. Step 3: Cross multiply
    13,314.78x = 18,372.42 × 7,346.70
  4. Step 4: Simplify right side
    13,314.78x = 134,976,658.01
  5. Step 5: Solve for x
    x = 134,976,658.01/13,314.78
  6. Step 6: Final answer
    x = 10,137.36

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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.