Home / 13,660.02-20,499.12-5,338.44

Finding the Fourth Proportional to 13,660.02, 20,499.12 and 5,338.44

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Solution

The fourth proportional to 13,660.02, 20,499.12 and 5,338.44 is: 8,011.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.02 : 20,499.12 = 5,338.44 : x
  2. Step 2: Convert to fraction form
    13,660.02/20,499.12 = 5,338.44/x
  3. Step 3: Cross multiply
    13,660.02x = 20,499.12 × 5,338.44
  4. Step 4: Simplify right side
    13,660.02x = 109,433,322.17
  5. Step 5: Solve for x
    x = 109,433,322.17/13,660.02
  6. Step 6: Final answer
    x = 8,011.21

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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.