Home / 13,494.10-20,241.27-5,172.13

Finding the Fourth Proportional to 13,494.10, 20,241.27 and 5,172.13

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Solution

The fourth proportional to 13,494.10, 20,241.27 and 5,172.13 is: 7,758.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,494.10 : 20,241.27 = 5,172.13 : x
  2. Step 2: Convert to fraction form
    13,494.10/20,241.27 = 5,172.13/x
  3. Step 3: Cross multiply
    13,494.10x = 20,241.27 × 5,172.13
  4. Step 4: Simplify right side
    13,494.10x = 104,690,479.81
  5. Step 5: Solve for x
    x = 104,690,479.81/13,494.10
  6. Step 6: Final answer
    x = 7,758.24

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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.