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Finding the Fourth Proportional to 9,402.80, 14,096.10 and 4,785.80

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Solution

The fourth proportional to 9,402.80, 14,096.10 and 4,785.80 is: 7,174.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,402.80 : 14,096.10 = 4,785.80 : x
  2. Step 2: Convert to fraction form
    9,402.80/14,096.10 = 4,785.80/x
  3. Step 3: Cross multiply
    9,402.80x = 14,096.10 × 4,785.80
  4. Step 4: Simplify right side
    9,402.80x = 67,461,115.38
  5. Step 5: Solve for x
    x = 67,461,115.38/9,402.80
  6. Step 6: Final answer
    x = 7,174.58

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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.