Home / 13,372.38-18,453.06-7,403.70

Finding the Fourth Proportional to 13,372.38, 18,453.06 and 7,403.70

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Solution

The fourth proportional to 13,372.38, 18,453.06 and 7,403.70 is: 10,216.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.38 : 18,453.06 = 7,403.70 : x
  2. Step 2: Convert to fraction form
    13,372.38/18,453.06 = 7,403.70/x
  3. Step 3: Cross multiply
    13,372.38x = 18,453.06 × 7,403.70
  4. Step 4: Simplify right side
    13,372.38x = 136,620,920.32
  5. Step 5: Solve for x
    x = 136,620,920.32/13,372.38
  6. Step 6: Final answer
    x = 10,216.65

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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.