Home / 12,861.39-19,176.54-11,763.03

Finding the Fourth Proportional to 12,861.39, 19,176.54 and 11,763.03

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Solution

The fourth proportional to 12,861.39, 19,176.54 and 11,763.03 is: 17,538.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861.39 : 19,176.54 = 11,763.03 : x
  2. Step 2: Convert to fraction form
    12,861.39/19,176.54 = 11,763.03/x
  3. Step 3: Cross multiply
    12,861.39x = 19,176.54 × 11,763.03
  4. Step 4: Simplify right side
    12,861.39x = 225,574,215.32
  5. Step 5: Solve for x
    x = 225,574,215.32/12,861.39
  6. Step 6: Final answer
    x = 17,538.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.