Home / 13,180.46-18,189.26-7,212.18

Finding the Fourth Proportional to 13,180.46, 18,189.26 and 7,212.18

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Solution

The fourth proportional to 13,180.46, 18,189.26 and 7,212.18 is: 9,952.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,180.46 : 18,189.26 = 7,212.18 : x
  2. Step 2: Convert to fraction form
    13,180.46/18,189.26 = 7,212.18/x
  3. Step 3: Cross multiply
    13,180.46x = 18,189.26 × 7,212.18
  4. Step 4: Simplify right side
    13,180.46x = 131,184,217.19
  5. Step 5: Solve for x
    x = 131,184,217.19/13,180.46
  6. Step 6: Final answer
    x = 9,952.93

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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.