Home / 13,327.61-18,391.79-7,277.65

Finding the Fourth Proportional to 13,327.61, 18,391.79 and 7,277.65

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Solution

The fourth proportional to 13,327.61, 18,391.79 and 7,277.65 is: 10,042.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,327.61 : 18,391.79 = 7,277.65 : x
  2. Step 2: Convert to fraction form
    13,327.61/18,391.79 = 7,277.65/x
  3. Step 3: Cross multiply
    13,327.61x = 18,391.79 × 7,277.65
  4. Step 4: Simplify right side
    13,327.61x = 133,848,918.53
  5. Step 5: Solve for x
    x = 133,848,918.53/13,327.61
  6. Step 6: Final answer
    x = 10,042.98

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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.