Home / 13,748.21-20,622.32-7,901.09

Finding the Fourth Proportional to 13,748.21, 20,622.32 and 7,901.09

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Solution

The fourth proportional to 13,748.21, 20,622.32 and 7,901.09 is: 11,851.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.21 : 20,622.32 = 7,901.09 : x
  2. Step 2: Convert to fraction form
    13,748.21/20,622.32 = 7,901.09/x
  3. Step 3: Cross multiply
    13,748.21x = 20,622.32 × 7,901.09
  4. Step 4: Simplify right side
    13,748.21x = 162,938,806.33
  5. Step 5: Solve for x
    x = 162,938,806.33/13,748.21
  6. Step 6: Final answer
    x = 11,851.64

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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.