Home / 13,660.92-20,478.42-4,891.32

Finding the Fourth Proportional to 13,660.92, 20,478.42 and 4,891.32

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Solution

The fourth proportional to 13,660.92, 20,478.42 and 4,891.32 is: 7,332.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.92 : 20,478.42 = 4,891.32 : x
  2. Step 2: Convert to fraction form
    13,660.92/20,478.42 = 4,891.32/x
  3. Step 3: Cross multiply
    13,660.92x = 20,478.42 × 4,891.32
  4. Step 4: Simplify right side
    13,660.92x = 100,166,505.31
  5. Step 5: Solve for x
    x = 100,166,505.31/13,660.92
  6. Step 6: Final answer
    x = 7,332.34

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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.