Home / 13,975.77-20,963.66-9,579.90

Finding the Fourth Proportional to 13,975.77, 20,963.66 and 9,579.90

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Solution

The fourth proportional to 13,975.77, 20,963.66 and 9,579.90 is: 14,369.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.77 : 20,963.66 = 9,579.90 : x
  2. Step 2: Convert to fraction form
    13,975.77/20,963.66 = 9,579.90/x
  3. Step 3: Cross multiply
    13,975.77x = 20,963.66 × 9,579.90
  4. Step 4: Simplify right side
    13,975.77x = 200,829,851.04
  5. Step 5: Solve for x
    x = 200,829,851.04/13,975.77
  6. Step 6: Final answer
    x = 14,369.86

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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.