Home / 13,176.30-19,764.45-12,101.10

Finding the Fourth Proportional to 13,176.30, 19,764.45 and 12,101.10

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Solution

The fourth proportional to 13,176.30, 19,764.45 and 12,101.10 is: 18,151.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.30 : 19,764.45 = 12,101.10 : x
  2. Step 2: Convert to fraction form
    13,176.30/19,764.45 = 12,101.10/x
  3. Step 3: Cross multiply
    13,176.30x = 19,764.45 × 12,101.10
  4. Step 4: Simplify right side
    13,176.30x = 239,171,585.90
  5. Step 5: Solve for x
    x = 239,171,585.90/13,176.30
  6. Step 6: Final answer
    x = 18,151.65

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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.