Home / 13,686.97-20,528.68-4,327.93

Finding the Fourth Proportional to 13,686.97, 20,528.68 and 4,327.93

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Solution

The fourth proportional to 13,686.97, 20,528.68 and 4,327.93 is: 6,491.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686.97 : 20,528.68 = 4,327.93 : x
  2. Step 2: Convert to fraction form
    13,686.97/20,528.68 = 4,327.93/x
  3. Step 3: Cross multiply
    13,686.97x = 20,528.68 × 4,327.93
  4. Step 4: Simplify right side
    13,686.97x = 88,846,690.03
  5. Step 5: Solve for x
    x = 88,846,690.03/13,686.97
  6. Step 6: Final answer
    x = 6,491.33

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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.