Home / 13,176.16-19,713.92-11,520.48

Finding the Fourth Proportional to 13,176.16, 19,713.92 and 11,520.48

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Solution

The fourth proportional to 13,176.16, 19,713.92 and 11,520.48 is: 17,236.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.16 : 19,713.92 = 11,520.48 : x
  2. Step 2: Convert to fraction form
    13,176.16/19,713.92 = 11,520.48/x
  3. Step 3: Cross multiply
    13,176.16x = 19,713.92 × 11,520.48
  4. Step 4: Simplify right side
    13,176.16x = 227,113,821.08
  5. Step 5: Solve for x
    x = 227,113,821.08/13,176.16
  6. Step 6: Final answer
    x = 17,236.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.