Home / 13,651.59-20,485.34-5,753.62

Finding the Fourth Proportional to 13,651.59, 20,485.34 and 5,753.62

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Solution

The fourth proportional to 13,651.59, 20,485.34 and 5,753.62 is: 8,633.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,651.59 : 20,485.34 = 5,753.62 : x
  2. Step 2: Convert to fraction form
    13,651.59/20,485.34 = 5,753.62/x
  3. Step 3: Cross multiply
    13,651.59x = 20,485.34 × 5,753.62
  4. Step 4: Simplify right side
    13,651.59x = 117,864,875.81
  5. Step 5: Solve for x
    x = 117,864,875.81/13,651.59
  6. Step 6: Final answer
    x = 8,633.78

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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.