Home / 9,431.10-13,015.26-6,369.12

Finding the Fourth Proportional to 9,431.10, 13,015.26 and 6,369.12

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Solution

The fourth proportional to 9,431.10, 13,015.26 and 6,369.12 is: 8,789.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.10 : 13,015.26 = 6,369.12 : x
  2. Step 2: Convert to fraction form
    9,431.10/13,015.26 = 6,369.12/x
  3. Step 3: Cross multiply
    9,431.10x = 13,015.26 × 6,369.12
  4. Step 4: Simplify right side
    9,431.10x = 82,895,752.77
  5. Step 5: Solve for x
    x = 82,895,752.77/9,431.10
  6. Step 6: Final answer
    x = 8,789.62

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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.