Home / 13,305.06-19,963.26-4,989.06

Finding the Fourth Proportional to 13,305.06, 19,963.26 and 4,989.06

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Solution

The fourth proportional to 13,305.06, 19,963.26 and 4,989.06 is: 7,485.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.06 : 19,963.26 = 4,989.06 : x
  2. Step 2: Convert to fraction form
    13,305.06/19,963.26 = 4,989.06/x
  3. Step 3: Cross multiply
    13,305.06x = 19,963.26 × 4,989.06
  4. Step 4: Simplify right side
    13,305.06x = 99,597,901.94
  5. Step 5: Solve for x
    x = 99,597,901.94/13,305.06
  6. Step 6: Final answer
    x = 7,485.72

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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.