Home / 13,327.39-18,390.99-7,358.92

Finding the Fourth Proportional to 13,327.39, 18,390.99 and 7,358.92

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Solution

The fourth proportional to 13,327.39, 18,390.99 and 7,358.92 is: 10,154.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,327.39 : 18,390.99 = 7,358.92 : x
  2. Step 2: Convert to fraction form
    13,327.39/18,390.99 = 7,358.92/x
  3. Step 3: Cross multiply
    13,327.39x = 18,390.99 × 7,358.92
  4. Step 4: Simplify right side
    13,327.39x = 135,337,824.13
  5. Step 5: Solve for x
    x = 135,337,824.13/13,327.39
  6. Step 6: Final answer
    x = 10,154.86

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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.