Home / 13,426.03-20,130.90-11,452.69

Finding the Fourth Proportional to 13,426.03, 20,130.90 and 11,452.69

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Solution

The fourth proportional to 13,426.03, 20,130.90 and 11,452.69 is: 17,172.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.03 : 20,130.90 = 11,452.69 : x
  2. Step 2: Convert to fraction form
    13,426.03/20,130.90 = 11,452.69/x
  3. Step 3: Cross multiply
    13,426.03x = 20,130.90 × 11,452.69
  4. Step 4: Simplify right side
    13,426.03x = 230,552,957.12
  5. Step 5: Solve for x
    x = 230,552,957.12/13,426.03
  6. Step 6: Final answer
    x = 17,172.09

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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.