Home / 13,709.03-20,564.28-4,349.78

Finding the Fourth Proportional to 13,709.03, 20,564.28 and 4,349.78

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Solution

The fourth proportional to 13,709.03, 20,564.28 and 4,349.78 is: 6,524.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,709.03 : 20,564.28 = 4,349.78 : x
  2. Step 2: Convert to fraction form
    13,709.03/20,564.28 = 4,349.78/x
  3. Step 3: Cross multiply
    13,709.03x = 20,564.28 × 4,349.78
  4. Step 4: Simplify right side
    13,709.03x = 89,449,991.04
  5. Step 5: Solve for x
    x = 89,449,991.04/13,709.03
  6. Step 6: Final answer
    x = 6,524.89

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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.