Home / 13,888.08-20,832.12-3,499.83

Finding the Fourth Proportional to 13,888.08, 20,832.12 and 3,499.83

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Solution

The fourth proportional to 13,888.08, 20,832.12 and 3,499.83 is: 5,249.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.08 : 20,832.12 = 3,499.83 : x
  2. Step 2: Convert to fraction form
    13,888.08/20,832.12 = 3,499.83/x
  3. Step 3: Cross multiply
    13,888.08x = 20,832.12 × 3,499.83
  4. Step 4: Simplify right side
    13,888.08x = 72,908,865.42
  5. Step 5: Solve for x
    x = 72,908,865.42/13,888.08
  6. Step 6: Final answer
    x = 5,249.74

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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.