Home / 13,326.33-18,390.58-7,357.65

Finding the Fourth Proportional to 13,326.33, 18,390.58 and 7,357.65

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Solution

The fourth proportional to 13,326.33, 18,390.58 and 7,357.65 is: 10,153.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.33 : 18,390.58 = 7,357.65 : x
  2. Step 2: Convert to fraction form
    13,326.33/18,390.58 = 7,357.65/x
  3. Step 3: Cross multiply
    13,326.33x = 18,390.58 × 7,357.65
  4. Step 4: Simplify right side
    13,326.33x = 135,311,363.58
  5. Step 5: Solve for x
    x = 135,311,363.58/13,326.33
  6. Step 6: Final answer
    x = 10,153.68

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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.