Home / 9,678.38-14,505.42-5,235.86

Finding the Fourth Proportional to 9,678.38, 14,505.42 and 5,235.86

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Solution

The fourth proportional to 9,678.38, 14,505.42 and 5,235.86 is: 7,847.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.38 : 14,505.42 = 5,235.86 : x
  2. Step 2: Convert to fraction form
    9,678.38/14,505.42 = 5,235.86/x
  3. Step 3: Cross multiply
    9,678.38x = 14,505.42 × 5,235.86
  4. Step 4: Simplify right side
    9,678.38x = 75,948,348.36
  5. Step 5: Solve for x
    x = 75,948,348.36/9,678.38
  6. Step 6: Final answer
    x = 7,847.22

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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.