Home / 9,680.12-13,362.63-8,195.72

Finding the Fourth Proportional to 9,680.12, 13,362.63 and 8,195.72

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Solution

The fourth proportional to 9,680.12, 13,362.63 and 8,195.72 is: 11,313.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,680.12 : 13,362.63 = 8,195.72 : x
  2. Step 2: Convert to fraction form
    9,680.12/13,362.63 = 8,195.72/x
  3. Step 3: Cross multiply
    9,680.12x = 13,362.63 × 8,195.72
  4. Step 4: Simplify right side
    9,680.12x = 109,516,376.62
  5. Step 5: Solve for x
    x = 109,516,376.62/9,680.12
  6. Step 6: Final answer
    x = 11,313.54

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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.