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Finding the Fourth Proportional to 18,794.35, 28,153.18 and 8,903.58

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Solution

The fourth proportional to 18,794.35, 28,153.18 and 8,903.58 is: 13,337.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.35 : 28,153.18 = 8,903.58 : x
  2. Step 2: Convert to fraction form
    18,794.35/28,153.18 = 8,903.58/x
  3. Step 3: Cross multiply
    18,794.35x = 28,153.18 × 8,903.58
  4. Step 4: Simplify right side
    18,794.35x = 250,664,090.38
  5. Step 5: Solve for x
    x = 250,664,090.38/18,794.35
  6. Step 6: Final answer
    x = 13,337.20

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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.