Home / 13,975.45-20,963.19-5,655.54

Finding the Fourth Proportional to 13,975.45, 20,963.19 and 5,655.54

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Solution

The fourth proportional to 13,975.45, 20,963.19 and 5,655.54 is: 8,483.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.45 : 20,963.19 = 5,655.54 : x
  2. Step 2: Convert to fraction form
    13,975.45/20,963.19 = 5,655.54/x
  3. Step 3: Cross multiply
    13,975.45x = 20,963.19 × 5,655.54
  4. Step 4: Simplify right side
    13,975.45x = 118,558,159.57
  5. Step 5: Solve for x
    x = 118,558,159.57/13,975.45
  6. Step 6: Final answer
    x = 8,483.32

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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.