Home / 13,518.13-20,270.27-7,196.60

Finding the Fourth Proportional to 13,518.13, 20,270.27 and 7,196.60

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Solution

The fourth proportional to 13,518.13, 20,270.27 and 7,196.60 is: 10,791.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.13 : 20,270.27 = 7,196.60 : x
  2. Step 2: Convert to fraction form
    13,518.13/20,270.27 = 7,196.60/x
  3. Step 3: Cross multiply
    13,518.13x = 20,270.27 × 7,196.60
  4. Step 4: Simplify right side
    13,518.13x = 145,877,043.07
  5. Step 5: Solve for x
    x = 145,877,043.07/13,518.13
  6. Step 6: Final answer
    x = 10,791.21

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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.