Home / 13,176.88-18,182.12-7,512.12

Finding the Fourth Proportional to 13,176.88, 18,182.12 and 7,512.12

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Solution

The fourth proportional to 13,176.88, 18,182.12 and 7,512.12 is: 10,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.88 : 18,182.12 = 7,512.12 : x
  2. Step 2: Convert to fraction form
    13,176.88/18,182.12 = 7,512.12/x
  3. Step 3: Cross multiply
    13,176.88x = 18,182.12 × 7,512.12
  4. Step 4: Simplify right side
    13,176.88x = 136,586,267.29
  5. Step 5: Solve for x
    x = 136,586,267.29/13,176.88
  6. Step 6: Final answer
    x = 10,365.60

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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.