Home / 13,453.02-20,169.75-6,874.20

Finding the Fourth Proportional to 13,453.02, 20,169.75 and 6,874.20

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Solution

The fourth proportional to 13,453.02, 20,169.75 and 6,874.20 is: 10,306.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453.02 : 20,169.75 = 6,874.20 : x
  2. Step 2: Convert to fraction form
    13,453.02/20,169.75 = 6,874.20/x
  3. Step 3: Cross multiply
    13,453.02x = 20,169.75 × 6,874.20
  4. Step 4: Simplify right side
    13,453.02x = 138,650,895.45
  5. Step 5: Solve for x
    x = 138,650,895.45/13,453.02
  6. Step 6: Final answer
    x = 10,306.30

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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.