Home / 18,926.04-28,389.06-8,540.76

Finding the Fourth Proportional to 18,926.04, 28,389.06 and 8,540.76

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Solution

The fourth proportional to 18,926.04, 28,389.06 and 8,540.76 is: 12,811.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.04 : 28,389.06 = 8,540.76 : x
  2. Step 2: Convert to fraction form
    18,926.04/28,389.06 = 8,540.76/x
  3. Step 3: Cross multiply
    18,926.04x = 28,389.06 × 8,540.76
  4. Step 4: Simplify right side
    18,926.04x = 242,464,148.09
  5. Step 5: Solve for x
    x = 242,464,148.09/18,926.04
  6. Step 6: Final answer
    x = 12,811.14

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Similar ratio
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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.