Home / 13,338.68-18,407.55-7,370.33

Finding the Fourth Proportional to 13,338.68, 18,407.55 and 7,370.33

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Solution

The fourth proportional to 13,338.68, 18,407.55 and 7,370.33 is: 10,171.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.68 : 18,407.55 = 7,370.33 : x
  2. Step 2: Convert to fraction form
    13,338.68/18,407.55 = 7,370.33/x
  3. Step 3: Cross multiply
    13,338.68x = 18,407.55 × 7,370.33
  4. Step 4: Simplify right side
    13,338.68x = 135,669,653.59
  5. Step 5: Solve for x
    x = 135,669,653.59/13,338.68
  6. Step 6: Final answer
    x = 10,171.15

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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.