Home / 13,176.88-18,182.11-7,512.13

Finding the Fourth Proportional to 13,176.88, 18,182.11 and 7,512.13

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Solution

The fourth proportional to 13,176.88, 18,182.11 and 7,512.13 is: 10,365.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.88 : 18,182.11 = 7,512.13 : x
  2. Step 2: Convert to fraction form
    13,176.88/18,182.11 = 7,512.13/x
  3. Step 3: Cross multiply
    13,176.88x = 18,182.11 × 7,512.13
  4. Step 4: Simplify right side
    13,176.88x = 136,586,373.99
  5. Step 5: Solve for x
    x = 136,586,373.99/13,176.88
  6. Step 6: Final answer
    x = 10,365.61

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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.