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Finding the Fourth Proportional to 18,834.33, 28,252.04 and 10,509.69

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Solution

The fourth proportional to 18,834.33, 28,252.04 and 10,509.69 is: 15,764.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834.33 : 28,252.04 = 10,509.69 : x
  2. Step 2: Convert to fraction form
    18,834.33/28,252.04 = 10,509.69/x
  3. Step 3: Cross multiply
    18,834.33x = 28,252.04 × 10,509.69
  4. Step 4: Simplify right side
    18,834.33x = 296,920,129.72
  5. Step 5: Solve for x
    x = 296,920,129.72/18,834.33
  6. Step 6: Final answer
    x = 15,764.84

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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.