Home / 13,660.60-20,490.92-4,895.32

Finding the Fourth Proportional to 13,660.60, 20,490.92 and 4,895.32

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Solution

The fourth proportional to 13,660.60, 20,490.92 and 4,895.32 is: 7,342.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.60 : 20,490.92 = 4,895.32 : x
  2. Step 2: Convert to fraction form
    13,660.60/20,490.92 = 4,895.32/x
  3. Step 3: Cross multiply
    13,660.60x = 20,490.92 × 4,895.32
  4. Step 4: Simplify right side
    13,660.60x = 100,309,610.49
  5. Step 5: Solve for x
    x = 100,309,610.49/13,660.60
  6. Step 6: Final answer
    x = 7,342.99

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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.