Home / 9,631.08-13,289.58-5,381.62

Finding the Fourth Proportional to 9,631.08, 13,289.58 and 5,381.62

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Solution

The fourth proportional to 9,631.08, 13,289.58 and 5,381.62 is: 7,425.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,631.08 : 13,289.58 = 5,381.62 : x
  2. Step 2: Convert to fraction form
    9,631.08/13,289.58 = 5,381.62/x
  3. Step 3: Cross multiply
    9,631.08x = 13,289.58 × 5,381.62
  4. Step 4: Simplify right side
    9,631.08x = 71,519,469.52
  5. Step 5: Solve for x
    x = 71,519,469.52/9,631.08
  6. Step 6: Final answer
    x = 7,425.90

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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.