Home / 13,709.02-20,563.53-7,853.14

Finding the Fourth Proportional to 13,709.02, 20,563.53 and 7,853.14

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Solution

The fourth proportional to 13,709.02, 20,563.53 and 7,853.14 is: 11,779.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,709.02 : 20,563.53 = 7,853.14 : x
  2. Step 2: Convert to fraction form
    13,709.02/20,563.53 = 7,853.14/x
  3. Step 3: Cross multiply
    13,709.02x = 20,563.53 × 7,853.14
  4. Step 4: Simplify right side
    13,709.02x = 161,488,279.98
  5. Step 5: Solve for x
    x = 161,488,279.98/13,709.02
  6. Step 6: Final answer
    x = 11,779.71

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Similar ratio
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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.