Home / 13,180.73-18,189.16-7,212.24

Finding the Fourth Proportional to 13,180.73, 18,189.16 and 7,212.24

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Solution

The fourth proportional to 13,180.73, 18,189.16 and 7,212.24 is: 9,952.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,180.73 : 18,189.16 = 7,212.24 : x
  2. Step 2: Convert to fraction form
    13,180.73/18,189.16 = 7,212.24/x
  3. Step 3: Cross multiply
    13,180.73x = 18,189.16 × 7,212.24
  4. Step 4: Simplify right side
    13,180.73x = 131,184,569.29
  5. Step 5: Solve for x
    x = 131,184,569.29/13,180.73
  6. Step 6: Final answer
    x = 9,952.76

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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.