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Finding the Fourth Proportional to 18,484.05, 25,506 and 10,930.65

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Solution

The fourth proportional to 18,484.05, 25,506 and 10,930.65 is: 15,083.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,484.05 : 25,506 = 10,930.65 : x
  2. Step 2: Convert to fraction form
    18,484.05/25,506 = 10,930.65/x
  3. Step 3: Cross multiply
    18,484.05x = 25,506 × 10,930.65
  4. Step 4: Simplify right side
    18,484.05x = 278,797,158.90
  5. Step 5: Solve for x
    x = 278,797,158.90/18,484.05
  6. Step 6: Final answer
    x = 15,083.12

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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.