Home / 13,372.18-18,453.87-7,403.68

Finding the Fourth Proportional to 13,372.18, 18,453.87 and 7,403.68

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Solution

The fourth proportional to 13,372.18, 18,453.87 and 7,403.68 is: 10,217.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.18 : 18,453.87 = 7,403.68 : x
  2. Step 2: Convert to fraction form
    13,372.18/18,453.87 = 7,403.68/x
  3. Step 3: Cross multiply
    13,372.18x = 18,453.87 × 7,403.68
  4. Step 4: Simplify right side
    13,372.18x = 136,626,548.24
  5. Step 5: Solve for x
    x = 136,626,548.24/13,372.18
  6. Step 6: Final answer
    x = 10,217.22

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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.