Home / 13,635.88-20,451.77-4,752.56

Finding the Fourth Proportional to 13,635.88, 20,451.77 and 4,752.56

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Solution

The fourth proportional to 13,635.88, 20,451.77 and 4,752.56 is: 7,128.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.88 : 20,451.77 = 4,752.56 : x
  2. Step 2: Convert to fraction form
    13,635.88/20,451.77 = 4,752.56/x
  3. Step 3: Cross multiply
    13,635.88x = 20,451.77 × 4,752.56
  4. Step 4: Simplify right side
    13,635.88x = 97,198,264.03
  5. Step 5: Solve for x
    x = 97,198,264.03/13,635.88
  6. Step 6: Final answer
    x = 7,128.13

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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.