Home / 15,195.29-20,960.73-9,141.32

Finding the Fourth Proportional to 15,195.29, 20,960.73 and 9,141.32

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Solution

The fourth proportional to 15,195.29, 20,960.73 and 9,141.32 is: 12,609.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,195.29 : 20,960.73 = 9,141.32 : x
  2. Step 2: Convert to fraction form
    15,195.29/20,960.73 = 9,141.32/x
  3. Step 3: Cross multiply
    15,195.29x = 20,960.73 × 9,141.32
  4. Step 4: Simplify right side
    15,195.29x = 191,608,792.77
  5. Step 5: Solve for x
    x = 191,608,792.77/15,195.29
  6. Step 6: Final answer
    x = 12,609.75

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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.