Home / 13,390.08-20,091.84-5,598.72

Finding the Fourth Proportional to 13,390.08, 20,091.84 and 5,598.72

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Solution

The fourth proportional to 13,390.08, 20,091.84 and 5,598.72 is: 8,400.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.08 : 20,091.84 = 5,598.72 : x
  2. Step 2: Convert to fraction form
    13,390.08/20,091.84 = 5,598.72/x
  3. Step 3: Cross multiply
    13,390.08x = 20,091.84 × 5,598.72
  4. Step 4: Simplify right side
    13,390.08x = 112,488,586.44
  5. Step 5: Solve for x
    x = 112,488,586.44/13,390.08
  6. Step 6: Final answer
    x = 8,400.89

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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.