Home / 13,537.12-20,305.20-4,303.36

Finding the Fourth Proportional to 13,537.12, 20,305.20 and 4,303.36

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Solution

The fourth proportional to 13,537.12, 20,305.20 and 4,303.36 is: 6,454.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.12 : 20,305.20 = 4,303.36 : x
  2. Step 2: Convert to fraction form
    13,537.12/20,305.20 = 4,303.36/x
  3. Step 3: Cross multiply
    13,537.12x = 20,305.20 × 4,303.36
  4. Step 4: Simplify right side
    13,537.12x = 87,380,585.47
  5. Step 5: Solve for x
    x = 87,380,585.47/13,537.12
  6. Step 6: Final answer
    x = 6,454.89

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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.