Home / 13,494.93-20,242.50-5,172.96

Finding the Fourth Proportional to 13,494.93, 20,242.50 and 5,172.96

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Solution

The fourth proportional to 13,494.93, 20,242.50 and 5,172.96 is: 7,759.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,494.93 : 20,242.50 = 5,172.96 : x
  2. Step 2: Convert to fraction form
    13,494.93/20,242.50 = 5,172.96/x
  3. Step 3: Cross multiply
    13,494.93x = 20,242.50 × 5,172.96
  4. Step 4: Simplify right side
    13,494.93x = 104,713,642.80
  5. Step 5: Solve for x
    x = 104,713,642.80/13,494.93
  6. Step 6: Final answer
    x = 7,759.48

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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.